I injured the back of my left leg a month ago. It hurt immediately, and I developed a bruise in that location. It is still tender to the touch, and there is still a lump and red coloration. I am on a variety of medications...HCTZ, Potassium Citrate for kidney stones, Omeprozole for reflux, sinthroid for hypothyroidism. I am a 52 year old female. I am wondering if I should be concerned.