<s>[INST] Hi I have had constant twitching in my upper right of my back presumably because of bad posture during wide-grip pull ups. Two weeks ago I heard a tear in my back when doing this the pain seemed to now shoot to my ribcage in my side it's hard to sleep and cough or tighten my abs. Afraid to exercise but anxious to get back to routine. Any idea of what I did or how long healing will take? Thanks! [/INST] Hi,You probably have pulled a muscle or there might be a tear. You need to rest for 2 weeks. Apply ice if there is swelling. After 2 weeks slowly start exercising under the guidance of a physiotherapist. Give him a visit now for further management. </s>