Did deadlifts 2 months ago & had severe back pain 2 wk. now mild chronic pain. get sharp pain from spine across back if do deadlift, no leg pain. other weight exercise ok.can pulled muscle take +8 weeks to heal?

Possible: It's is possible if you are continuing to aggravate it with other exercises that you may be doing. However, discussing with a musculoskeletal physician is still important after two months of pain.

Back injury: Back injuries can take weeks and possibly months to heal. Chronic pain indicate more than a pulled muscle. It is important to visit a neurosurgeon or a spine surgeon to be examined and obtain imaging studies to better define the extent of the injury.

Avoid Deadlift: Usually exercises where you are flexed and having to lift heavy weights will make a disc herniations worse. Avoid bending at the waist with weights in hand and avoid twisting motions as well. Yes it can take up to 8 weeks for muscles to heal and can take up to 6months or longer for disc herniations to heal. Be careful.