hi there, wonder if anyone could help or shed some light on the problem im having!!

for around a year now ive had a constant headache but over the past few months it is slowly gettin worse, the headache iused to be all over my head but now is on the back of my head. cant really explain how it feels but its as if there is some kind of weight on the back of my head. i sometimes have dizzy spells that also worry me. ive been to the doctor and he has given me tablets to take for three months im two months in and have noticed no difference which worrys me!! my ears also ring all time i dont know wether this has anything to do with the headaches but thought would mention it.

if anyone could give any suggestions what this could be or what i should do would appreciate greatly!!

thanks agin.