### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I heard a click or pop in my left knee like it tore something while I was at my Physical Therapy session for my right leg problem. Same thing happened to me while I was working out and stretching my leg in gym and heard the same sound from my right leg over two years ago. I have been to soo many doc, Pain specialist, had cortozone/steroid shot in hip twice. But none of doc have been to explain my symptom, MRI and x-rays looks normal. Doctor seems to think its an issue with siatica because I feel starin in hip and back of my thigh sometime. But most of my issue is around knee and right foot. I feel numbness feeling in shin and burning and throbing over the top of my right foot. heel of my foot also hurts. I also have flat feets dont kow if this has anything to do but I have seen paidotrist for my foot and found no issue. I would be glad if I could find an answer to my issue. Thanks

### output:

Hi, The click at the knee joint if it is painless than there is nothing to worry but if the sound is accompanied by pain then what I think is medial meniscus at fault. Since you are having a flat foot, muscle imbalance is a common problem. This leads to shin pain, foot burning and similar symptoms that you have mentioned. You need to do strengthening exercises of foot that includes inversion (foot inwards), Everson (foot outwards), dorsiflexion (foot upwards), also hip strengthening and knee strengthening.Also, what I suppose is your certain muscles might be tight so with the help of the physio you can relieve them. Your footwear plays an important role in maintaining your foot condition so always keep them in food condition and check for any wear and tear. Hope you find this helpful. Let me know if I can assist you further. 