my skin on my knee went numb a couple of days ago and was very painful. like bees stinging me over and over. it has gone up my leg and into my hip. last night i saw that i now have a very painful bumpy rash on my hip. it is about the size of a baseball. it too feels like bees stinging me. it has not grown in size at all and this is they only rash i have. this has been very painful. it has kept me up at night. should this be something to worry about or will it pass? i am 23 5'4 and weigh 267. i have don't have much of a medical history. i am pretty healthy other than being over weight. i also have a curve in my back due to an injury i sustained when i was 19.