Leg swelling issue

Does anyone know how to get over swelling leg? I have started doing self administered shots last week on my right leg and now it is bigger than my left. Both my thigh and calf are bigger than my left by a noticeable amount but nothing crazy. There is no discoloration as well. I saw that it could be electrolytes and I am going to be stocking up on those. I am just starting to take potassium and iron as well in addition to my b complex, magnesium, and zinc that I have been taking. I’m going to go to my PCP tomorrow morning to make sure I’m ok

This first week is god awful. I started feeling way better after the first two shots but then I kind of crashed. Dealing with this alone is so hard too. All my friends are halfway across the country and I wish I knew someone to just come over and talk while I’m feeling like shit.