I doubt you have diabetes however, since you did not complain about being hungry all the time, peeing a lot or being thirsty all the time (the three cardinal signs of diabetes mellitus). Which is always good, diabetes can be a terrible illness.

Please do make an appointment with the doctor however, a pins and needles sensation that persists is not something you want to ignore.

Vascular claudication:Not likely based on your age and symptoms. The hallmarks of vascular claudication is years of untreated peripheral vascular disease or diabetes. The typical person is over 50 and has a long history of smoking. By this stage, there are usually changes to the skin: the leg become stained a brownish color. It would be practically unheard of for this to occur simulatenously in the hands. Finally, the hallmark of the disorder is that that symptoms occur with activity. It severely limits walking capacity and is relieved with rest. Sitting on the couch and experiencing symptoms would indicate that this is not likely a source of your symptoms.

Diabetes: While headaches may occur in this disorder, they also occur in other disorders. Juvenile diabetes typically has the symptoms of extreme hunger and weight loss despite eating a lot. Extreme thirst with extreme urination also occur. Finally, due to low blood sugar, the patient is likely to faint frequently…espeically with long lapses between meals. Even if you did have Juvenile diabetes, it would not be likely to cause diabetic neuropathy…this usually comes after many years of poorly managed diabetes. Your blood pressue really does not have much effect on this disorder in the way you describe. Diabetes is an issue with either insulin production and managing the glucose in your blood.

Peripheral Neuropathy: Again, this is a disorder likely to happen is an older population. Usually there is history of either poorly managed diabetes or alcholoism or other medical disorder. You can get idiopathic neuropathy, which means the cause is unknown, but again this is a disease of the older adult population.

MS: Certainly this symptom might occur in MS. However, you are under the age of average age of onset of MS. Only rarely have I seen it onset in someone in their late 20s…usually it’s late 30s, 40s or even 50s. However, if you are finding other symptoms such as weakness and sudden clumsiness in the hands, this would be cause for concern. MS can have pain associated with it, but it’s usually the weakness that is the hallmark.

Your symptoms do indicate that there is perhaps something neurological. What is most likely since it is occurs with activity and position (sitting on the couch), it could indicate what the typical lay person would call a "pinched nerve" or "sciatica"…this typically is referred from the lower spine. A bulging or herniated disc can irritate a nerve, or an irritated disc can also refer pain down the leg. It typically only occurs in one leg, but can cause symptoms in both. Since you are a young and athletic person, this could be suspicious for a spondylolisthesis (ie, a slippage of the vertebrae)…however, not all spondylolistheses are something to worry about. What is also concerning is that you get the symptoms in the arm. This would not be consistent with a low back problem. It could occur if you also had a neck problem. However, a bad enough neck problem can also refer pains to the legs. …but the fact that you report your leg symptoms more frequently, I would say it’s more likely consistent with a separate neck disc related pain and a separate low back one.

The other issue could be posterior compartment syndrome…this is really a rare condition…I’ve only seen it once. It is a vascular condition, but is not a degenerative as in the ones above. It typically produces tingling and "cramping" during athletic activity. So the fact that you get it even at rest and that it sometimes occurs in the hands makes this not likely.

What I would do first is have your PT screen your spine. If they are not a spine expert, I think it’s worth a trip back to the physician, as neurologically related symptoms in teens are a cause for ruling out things such as the spondylolisthesis. If everything turns out OK and you do have pain referred from the spine, you will most likely be referred back to PT, but I would recommend seeing a PT who is certified in Mechanical Diagnosis and Therapy: http://www.mckenziemdt.org