i think ive had what youre talking about before. there have been 2-3 times over the last few years that ive had pain in an elbow. actually, it wasnt even like pain, just kind of a dull nag, but when i needed the strength to be there during a lift, it just wouldnt be there. even during simple things like a triceps pushdown, id be fine, several reps into the set, and then the strength would just be gone.
honestly, i never really did anything for it besides buying a pair of "elbow sleeves"...thats what i call them at least. basically its like an ace bandage that you put your hand through and slip it up onto your elbow. i found that it helped a bit for benching. other triceps movements i basically just gritted my teeth and pushed through, or simply left alone until things felt better.
i would say every response i have read so far to your question could help you in some aspect.