I injected .5ml of test on Sunday subq in my stomach since it was all I had left and didn't want it to go to waste. I now have a noticeable bulge or lump that is tender to touch and slightly red and warm. I have had subq shots do this once before but not this bad. I applied heating pad last night and stood in a hot shower today and the knot won't massage out. I am thinking of taking doxycycline that I have in case it is infected. Anyone have this happen before?