4 weeks ago I fell down my wood stairs and, among other things, bumped my head against the wall I hit. I got a black eye along with a "sac" of blood from my forehead about 1 inch long. I bruised my ribs with just some bruising. My question: for two days now, I get a weak and shaky feeling, along with sweating so I want to know if this could be related to the fall. I tried to say all the pertinent info.