i'm sorry to hear you're going through this. pain is never fun! unfortunately there's no way to tell what could be causing your pain without a physical examination and possibly some imaging studies. there are many conditions that could cause the type of pain you describe. the hit you took to the side of the knee could be contributing to the pain or it might have nothing to do with it at all. it's not likely the knee trauma you experienced "several weeks ago" would contribute to new symptoms today but it would be best to have an expert check this out. taking the blow to the knee out of the equation one condition that can cause the type of pain you describe is called ' baker's cyst. ' this condition is not life threatening and often causes few symptoms. it can be treated pretty easily. i suggest you see a medical professional for further evaluation. wishing you well! as you have hurted your knee it may cause pain. pain due to trauma take time to heal. rest and proper exercise can reduce the pain and strain to the area affected.
why does the back of my knee hurt? . a few weeks ago i took a side hit to the knee. yesterday when i went for a walk the back of my knee started to hurt. now any time i walk much i t starts hurting. it's like a aching pain.