Depression from Health Issues.

Seems like I have a million and one health problems to no end. Everyday I feel like have a new health problem. For the past year I have been dealing with vaginitis which has caused my skin to be red and inflamed with a sometimes intense burning pain. Around the same time I also seemed to develop constant heartburn and reflux issues. I have tried everything under the sun to no avail. Just really I came down with the flu and shortly afterwards, developed a ringing sensation in my ears followed by nausea. And to top it off my hands and feet have started to tingle. I am at my wits end...nothing my doctor seems to be doing is helping. I am only 17 years old...the depression is starting to weigh heavily on my mind. I've been to various doctor so many times. I'm so miserable.