anxious about surgery but not any speafic aspect

hello, I'm going in for my 5th surgery in 2 weeks, and I'm really really anxious, but weirdly enough it's not any speafic aspect like it has been before, before it was usually anxiety around annethisa because my first surgery I had a bad reaction to propofol, and that made me super anxious about it, however last surgery they used ketamine and fentanyl for annethisa and it went well, my surgical team was great, and that pretty much got rid of any anxiety I had around annethisa, but not I'm going in for surgery and I'm super anxious again but I don't know why, the surgery is super low risk, recovery isn't bad, I don't mind them cutting me open, I don't like being asleep for it, but I don't imagine I'll have as bad of an experience as with my first few surgeries, I just don't know why I'm anxious about it, but I am, any suggestions