I am 40 years old. When I was 16 I fell off a horse and tore my ACL in my left knee. I have had a total of four surgeries. For about 5-6 weeks now my left heel on the bottom from the arch and back is in constant pain.My arch does not bother me, just the bottom of my heel. It feels like I have damaged my nerves...I am in so much pain I can hardly stand or walk without limping really bad and the pain does not go away...Its costantly throbbing. I am allergic to ibuprophren so I take tylenol to try to help. I am with out health insurance and I dont know what to do to make it stop. I have also tried using a tennis ball and rolling it under my heel to try to massage it but nothing works...please help me...i can't function hardly and it is really wearing me down. I can't even walk from one room to the other without buckling over in pain. Is this related to years of limping from my past knee surgeries?