Headache since one month. This feeling!

Hi I had suffered from hypokalemia in the August end and recovered properly. At that time I also had MRI done which was normal. After 2-3 weeks gap, I started to get some aches in my chest and dyspnea which stopped in 1-2 weeks. But I was really anxious and completely nervous and baffled about the situation I faced like chest pains which were simply muscular ones and some kind of acidity. Now I am facing head pressures above my eyes and above my ears and sometimes at the back of my head. It stops by rest. I hardly had vomiting in this month 1-2 times because of acidity. Now I get these head pressures or sometimes aches that are not too intense. But it distracts me. I went to a neurologist who had checked my MRI two months back and she prescribed me with mitigus 10 for sometime.Is two months sufficient for some ailment to develop. I have no injuries in head nor I am too sportive. It terrifies me with this feeling!😔