Health anxiety

Does anyone else suffer with health anxiety? 
I'm 24 and due to go travelling for a year in a month. I'm constantly looking at myself convincing myself that I've found new bumps etc, or that looks different etc and then convincing myself it must be bad but I also know with current wait times I hardly even have time to get a GP appointment. It seems potentially ridiculous to cancel my flights because I'm just ridiculously paranoid. I've always been a bit like this, hate calling the doctors and the word hospital freaks me out completely, but it seems to be getting worse as I get older.

Just wondering if anyone else has this issue. I'm going to Australia so I think if I do need to go the doctors and I have health insurance I should be able to go but I go through these sort of waves where one minute I feel fine then in the evenings I get a shower and convince myself I might be completely falling apart. I'm an otherwise healthy 24 year old, I have an active job for a living and no obvious actual symptoms of anything apart from ones I convince myself I have found.