Hi,

i am 27 year old and for the past couple of weeks i've been feeling a little weired.
To sumarize, in the begining I felt a little dizzy, then I got a kind of a cold with some mild fever but felt very tired. I also head constant back head ache which felt more like presure in the back of my head and a little bit on the sides.
Then I drank lots of water and took some hot baths and then rested. After one hot bath and taking a nap I felt alot better and it felt like I gained some enery back. I felt a little better for couple of more days but now I feel the pressure in my head again, along with the dizzy feeling and tiredness and a little feeling of unreality(especially when I space out or concentrate more on one object or thing).
Also at night when is quiet I feel more than hear this hum in the back of my head...Constant...But it fades more away when the head ache/pressure milds away.
When I get up in the morning I feel more tired than normal then I used to.
Also when I had the fever/cold my body felt cold at times, more like there was a cold rush going through my body or I should say more in the back of my head and then would go away.
I can go by normaly tough, I go to work, I can eat but it bothers me and makes me feel tired and wired.

I remember I felt similar once in my life back when I was about 19 years old and I remember it all when away. From what I remember it started when I went swiming and water got into my right ear clogging it up for a couple of weeksor so.
Also recently 1 month ago I went to the dentist and was prescribed penicilin v and took that for 10 days.

Does anyone now what this could be ?. I also have it lined up to go see a doctor but I am getting a little worried about this situation.