Unknown brain sensation. Please help!

I have been feeling anything unknown in my mind. It is something which can't be explained but a little dizziness and sometime pain in my neck. A have constipation issue but now days it is fine but sudden gas related issues are there in body. I have been facing it since one month. One day I was sleeping in afternoon and I got up with circular head or dizziness. I took medicine for vertigo but it is still happening. I have no headache but a very different kind of heaviness which is never relates which can't be felt by my body. I have no idea why it is happening but it is not in my control . Some times it goes away in a day but it comes back. I feel good in sunlight and little issue with tubelight. Please help Thanks