I watched a tv episode in which a guy was having problems with his hands not functioning properly, and feeling leaving them. It turned out his apartment was near a dry-cleaning establishment and the chemicals were being passed through the ventilation system.
Hi
Thanks for writing to the forum!
Yes, mold can cause this and so also dust, mites, pets in the neighborhood like dogs and cats if you are allergic to them. If there is water seepage in the walls then mold is a possibility. It can also be there in air conditioners.
Hope this helps. It is difficult to comment beyond this at this stage. Do consult your doctor. You may need to get an allergy test done, either a skin test or RAST, to know what you are allergic to. Please let me know if there is any thing else and do keep me posted. Take care!