Yesterday evening I rubbed my hand against my couch and noticed it was sore. When I looked down I noticed it was swollen and bruised. I iced it last night. Now it is very red and bruised and swollen. I don’t remember hitting it on anything. I was working in my garden yesterday afternoon but I think I would remember if I hit my hand on something hard enough to cause all this bruising. Im scared it’s a blood clot because i can’t explain the bruising.