Help??!

so I just finished having my period.last day was yesterday but I started to notice a little bit of burning when I pee yesterday and I thought oh well I just need to drink more water so I switched all liquids to water and this morning I noticed it was not as bad anymore.. once I got to work I have been drinking nothing but water I'm on my 4th 16oz bottle of water but the burning is back and I get a huge urge to pee every 20-30 min but only a few drops.. Could I have gotten a UTI from my tampons or pads?