Diziness and head feels weight.

I had left ear pain,fever,cold in April and later started using medicines, it got reduced. But again in June, I ate ice cream, which again gave  me a cold, fever and ear pain. The first two reduced through medicines, but left ear pain was mild and constant. I ate bubblegum to release the pressure on the left side, it got reduced after 25 days. But sometimes it is very mild due to cold air. But since the last 2 weeks, I had dizziness and my head suddenly feels weight and it makes me very difficult while walking. At first, it was only for some time, but since last week, I could feel dizzy almost all day while doing work or walking. I have also taken a blood test last month, in which ESR is 20 but should be in the range of (0-12). Could you please suggest what could be the possible issue, is it due to ear related or anything?