<s>[INST] I have fallen over the weekend and as a result of that fall I have a bruise on my right knee and feel discomfort on my right side of head (above right ear.) Since the fall which happened early Saturday morning (Feb 1), I have felt fine with no discomfort. I started feeling discomfort and the pressure on my forehead after I went to bed last night (around midnight.) I woke up feeling the pressure and started feeling nervous and scared. I could not fall asleep right away. I was shaking for awhile too. Right now, I feel better but still feel a little warm on my forehead, with slight pressure at forehead. [/INST] Hi there, am so sorry to hear about your fall. From what you have described here. It sounds like you might be suffering from Post Concussion Syndrome (PCS). This is just a fancy way of saying that you might have a bit of bruising and irritation of the brain and surrounding tissues in the region of the injury. This is actually pretty common after most head injuries especially in the young. It almost always resolves in 5-7 days without any issues. I would expect the same to happen for you.If the symptoms last longer than that, then you need to go see your primary care doctor and get a CT scan of the brain to make sure there isn't something else going on in there.As far as the knee goes. If the pain and swelling last much beyond a week after the injury, then you need x-rays of the knee and you will probably need a knee brace. Beyond that, it depends on what they find on the x-rays.All in all, don't worry. Give your brain and knee some time to rest. Use the OTC painkillers to deal with the knee pain. If the symptoms last beyond a week in either issue, make an appointment to go see your primary doctor.I hope this helps. If you would like to discuss this further with me or any of the neuro-specialists on the site then you can use our "Ask a Specialist" service and we will get back to you right away. Take care! </s>