Is a uti always accompanied by burning urination?

That's a pretty common symptom. Actually it's a good thing - it tells you you have a problem and you can often clear the infection by drinking TONS of water and getting an over the counter medication. Ask a pharmacist. I used to get urinary tract infections a lot when I was younger, usually after too much of a good thing in bed. Women can also get them from wiping themselves back to front instead of front to back. Know your body and pay attention to the warning signs.