I would say one step at a time ,start by ringing Docs to make an appointment and go from there ,its amazing how it will just all flow and come together from there ,the alternative is doing nothing and worrying every day .

I know you're right, just seen so many videos about the negatives of going down that road for anxious people..

I think most people on here are very nervous its a natural reaction but I think most are more relieved after they have srarted the process knowing that they are doing something about it ,that's why I said one step at a time and see how you go there are so many people that will help you ,but from my experience and the experience of others its best not to Google ,its not going to help at all Best Wishes stay in touch and let us know how you get on ,make that call x

This symptom sounds more like a uti to me.. first thing the doctor would do is probably a urine sample 

from what i have read there would be other symptoms if it was a UTI

Have you been very thirsty lately? Diabetes comes to mind. It could be several things apart from cancer. Really best to see doc.