The handle bar came loose somehow; the front tire went one way, handle bar the other way and I went flying. Hit the pave with my knee really hard , have a strain pinky, bruise on my left hand but I am worry about the big lump just below my knee, its about the size of a tennis ball but bigger and just wonder hopping its not blood and its going to coagulate and go to my heart or something. I am 55 years old, don't tell me to go to the hospital, have no medical insurance and don't want to go to a clinic to pay $60 or so just to get the doctor prescribe some naproxen or something. After I fell had to walk about 3 miles back home since the bike was messed up and didn't realize the bump until I got home.