<s>[INST] last Tuesday i hurt my lower back while doing squats. its been hurting but the pain is isolated in my lower back it hasn t spread it sometimes hurts when i bend over but usually it just is really tight in my lower back which prevents me from bending over very far. it also hurts when i get up after sitting but it is very miniscule. [/INST] Dear-thanks for using our system and hope will my medical advice will be helpful. You probably have a pinched muscle from the exercise Sometimes, specially when you do an exercise and don't stretch well, you can have this problem. It might take few days to improve, try to avoid heavy exercise, use a heating pad, rest and take anti-inflammatory as ibuprofen for 72 hrs. If it does not get better, you might need to see your doctor for an x-ray and further evaluation. Chat Doctor.  </s>