Smoking isnt great for your circulation and that may be part of it...
The only thing I've heard of that can cause this is carpal tunnel (I think that is how it's spelled). It can cause pain and or numbness I'm pretty sure. Also diabetes can cause a tingling sensation in hands and feet. Hmm... that is an unusual one and I don't blame you at all for being worried. Go to webmd.com and type in your symptoms, that is what I always do. I would definitely go to the doctor if it didn't get better quick. Good luck