Hey, so I'm a 15yr old male. to give background information last year I began feeling sick and needing to go to the toilet mostly whenever I went into school but also meetups and other situations. on a visit to the doctor he gave me the thumbs up for anxiety (maybe I'm too young for a diagnosis I don't know I just want help). 

to sum it all up with this 'anxiety' I've been graced with bowel problems which then lead to feeling sick with the whole intrusive thoughts business on top. 

last year it never really left but it got easier to manage as time went on. now I've just started year 11 and it's all flooded back again as bad as it was back then. 

now what doesn't help is my school is rather strict in that we can't go toilet during lessons which then provide this dread where I'm essentially stuck which then in turn just fuels all these different problems. plus year 11 meaning I've got all my exams and just more of that containment. 

really I don't know the purpose of this I just kind of want some guidance and maybe some steps towards supporting myself. 

(I know that I may be too young for a diagnosis such as anxiety, I'm just going off what I'm told and would just like some help. thanks)