My mother age 72 , is suffering from " stretching pain" while walking. There is no pain when she is sitting or sleeping. Around 15 days while walking in the house , she slipped forward. But she didn't fall down. She is saying that slip had affected her upper thigh. Though she sometimes takes medicine called Acenac. But it's not helping her. She regularly takes blood pressure, colestrol , asthma , acidity medicine. Why she is getting this pain ?