I experience dizziness and tightness in my chest after the second dosage of COVID vaccine. What could be the cause?

Hi doctor,

After my second dose of COVID vaccination, I started experiencing different sensations in my body. The second day after the vaccine, I started getting intense feelings in my body. First, I would get extremely dizzy, then my speech would almost become slurred and confused, then my eye lids would become super heavy, and I felt weak and tired like I was going to pass out. This happened several times, and I thought I was having a stroke. I went to the emergency room, and it was not a stroke. Sometimes migraines would follow. I was told they found an arachnoid cyst, but they said it might be an incidental finding and nothing to worry about. I got my booster, and everything is happening again. I was supposed to see a neurologist, but he decided to take a vacation which pushed my appointment later, after two months. So I am trying not to freak out, and I am trying to figure out what to do. I am just worried something is happening, and we could be preventing it or taking action.

I am under Hydroxyzine for sleep, zinc tablets, vitamin D and, vitamin K supplements. I performed CBC test and CT scan.

Please help me with the current situation.

Thank you.

Hi doctor,

Thank you for your concern. I have answered your questions below.

The symptoms usually last for about 10 minutes. But then, sometimes, I feel tightness in my chest. I feel dizzy, almost like the same feeling as being drunk. Then my words and speech seem off. I am sometimes confused too. Then, I get this tired feeling in my body and feel like I will pass out. And I get tingly and goosebumps throughout my body. Such episodes occur two times a week. I have trouble sleeping a lot, and I rarely wake up rested. I have been checked for sleep apnea, but I do not have it. Generally, I am optimistic. I believe life is a gift, and there are good opportunities and beauty all around. But then, when this happens, I think maybe I am sick or that I might have a disease. My appetite is generally pretty good. I have a hard time losing weight even though I eat good food.