We purchashed a 2004 single family home, there's been a lot of rain here in Port St Lucie lately so I'm not sure if this could be causing the gurgling and back up into my bathtub but it's been occurring for over a week now... help!!

Is your rainwater runoff connected to your sewer? If yes then that's your problem but if no then you have a partial blockage downstream from the tub. Do you need instructions on how to snake a tub from the overflow? Back to you. Tom