this morning when i woke up i had pain in the bend of my knee, i then noticed that i had huge bruised in the bend of my knee. I then noticed that i had bruising behind my other knee as well. I have had pain behind my knee all day and seems to be worse now.
Hello, I read carefully your query and understand your concern. The symptoms seem to be related to microtrauma of the knee. I suggest using anti-inflammatory medications such as Acetaminophen to relieve the inflammation. I also recommend using cold compresses for local application. Hope my answer was helpful. If you have further queries feel free to contact me again. Kind regards!  Chat Doctor.