Hey Courtney, while it sounds like your pretty content with your new bf ;)
You are correct. You are most likely suffering from what is commonly refereed to as the "honeymooner's disease" otherwise known as a UTI. It's not all in your head, please Don't put this off. You need to nip this in the bud before the bacteria spreads to your bladder and/or kidneys, which could end up in complications and or damage of the kidneys.
While it is relatively easy to treat, it is not something to wait around on, it will not go away by itself. And while the sex is great, you should probably hold off for a while! Doing different types of sex, as you indicated above, tend to spread bacteria, which is how UTI's are thus born. You will keep getting them until you take preventative measures.
That said, please go to your PCP or local Emergency Room, to get a good round of strong antibiotics. You can also request a script for something called, Peridium. It is a red dye that acts as an analgesic ONLY on your urinary tract, it helps with the spasms also. I hope you feel better! Please heed my advice though, and drink plenty of fluids,cranberry juice helps kidney/bladder too!