Deep pain in legs as if i worked out. legs go numb constantly when sitting. slight nausea and minor headache for past couple of days. what is this?

Body mass index?: You may have some type of compression going on of your femoral nerves or your medial/lateral cutaneous nerves in the legs. This phenomenon could happen for instance if one's body mass index is above the norm which would suggest that weight loss may be a solution to the problem or at least help. Of course, bodyweight may not be a factor in this case. Check with your doctor for further information.