hi, ive found a topic i dont seem to have a post in but now its this ones turn

im 18/m/uk i been on holiday since last saturday (we got back today) and its quite strange i dont even know if this is the right section but i think it started on the first saturday or even sunday but im now slightly dizzy, well not so much dizzy but every so often if i move my head it will be a little a dizzy, its hard to explain because im not like..dizzy dizzy its just this little thing ive noticed like if youve had alcohol but not enough to be drunk like when things are a little funny , its a very mild form of this i think it started on monday morning actually as on the sunday i got quite drunk despite having tablets for my ibs which state i shouldnt really have alcohol with them (so that probably hasnt helped) but you know when you wake up and the dizzy hasnt completley gone its sort of like that but every so often ive got it in my head its a brain tumour although i dont really have anything else wrong with me i mean ive been getting headaches but they are more the strain on my eyes because i need contacts, when i put them in i hardly ever get headaches then and if i do a couple of paracetamol sort it out.
we stayed on a campsite in a large caravan and i wasnt sure if it was maybe the central heating in it or something because when we was inside it was more noticeable when we was out i had to think about it and then i would notice it every so often im hoping now im back home it will sort itself out
do you think its maybe some sort of flu ive got because i also seem to have a runny nose and am sneezing quite a bit, the reason im concerned is because ive had colds/flu before but ive never got any form of dizziness from it

anyone have any ideas or anything to ease my mind, im good at getting stressed and anxious so i could do with this lifting from my mind, thx