First of all: I'm not a doctor, but was suffering from continuous pains in shoulder, fixed it all myself by reading literature and consulting with real doctors. Be warned.
Possible causes that I think of are: a trauma, a strained muscle, a posture deficiency, and a myofascial trigger point. Or all four together. You probably should visit an orthopaedist first, to check out if you have any posture deficiency, no matter whether it is caused by trauma or not. If you do, then you'll probably be prescribed some corrective treatment, a series of exercises and stretches. It is usually because of posture deficiencies (a short leg, scoliosis, kyphosis etc) one group of muscles is overloaded, and another is overstrained. The latter causes continuous pain. If that is your case, then first identifying, and then stretching the group that is overloaded, and also exercising the weak, overstrained muscles should help immediately within 1-3 days. However, don't do that without consulting a doctor first.
Further reading:
http://exrx.net/
"The Trigger Point Therapy Workbook" by C.Davies Good answer by the first person, I would only add that referred pain can be the result of neurological or vascular injury as well, and should be evaluated by a doctor before undertaking any self-help regimen, as these can result in permanent injury. Some of the things done to relieve muscle strain can aggravate these conditions, so you should have a more definitive diagnosis before undertaking them.
crabs
It could be a certain deodorant that your body reacts to.
yes it does. it could cause cancer in your fingers.
This would depend on your nose. A bad CMP sensor may cause improper burning of the fuel and can give a smell out the tailpipe. Will the CMP smell? Never. A Ford camshaft syncronizer will squeek and could cause a metallic burning smell.
Not normally, no. It could only cause pregnancy if there was sperm on his fingers. However, even if he did it would be unlikely to cause pregnancy. Still, it is important to make sure there is no sperm on his fingers if he is going to touch her.
kidney stone, pulled adhesions, infection
Cancer
maybe but so does medication they could have put you on
Depending on the severity of the cold, you could get frostbite, and possibly lose your fingers.
Something is burning. New answer The above answer is obvious as to what coud be burning it could be a number of things. First check the fluids. If any of them are low it could cause a burning smell, top them up to the proper levels. If the burning smell continues then it could be some thing else. Or it could be some fluids spilt on the engine while it was running. It could also be a malfunctioning cercuit, burnt wire, some thing in the engine could be dying out. When in doubt have it checked out asap or the burning smell could burn through your wallet.
It is possible to have a cramp in your fingers on the same hand that you have Dequervains without it being associated. De Quervain's is normally restricted to issues in the tendon that movers your thumb away from the fingers.
Being stung by a jellyfish.