Has anyone else had emgality injections for migraines? Side effects?

I have been on emgality injections for 3 months about to do my fourth one. I have had some side effects that my neuro dr says can't be from the injections. This is the only new med I have started in 4 months. Long story short, I have been very fatigue, high blood pressure, dizzy spells, ringing in the ears, and almost like sinusitis infection. About 2 weeks after first injection dr put me on antibiotics and steroids for a severe sinusitis infection and double ear infections. I felt better till I got the second injection now I have the same symptoms all the time some days or worse than others and some days are good. I also have back pain along with hand swelling for about a week to 2 weeks each time I get injections. My health insurance is very strict and my family dr has to refer me to specialist. What should I do or are these side effects normal. Yes my migraines are so much better than they were but I don't know if I can live with the side effects.