for the past few years, i have been constantly nauseous. it has always come in waves... some months are awful, some are okay. but, each and every day, i feel nauseous at least once. the past few months, it's been worse. it has gotten to the point where everywhere i go, i make sure i have an exit plan or garbage can nearby in case i have to be sick. the thing is, though, i have never actually gotten sick. i was starting to think that it might be anxiety, but i don't believe it is. i started drinking lemon water regularly, after i read that lemons can help with digestive issues. i can usually get past the nausea with drinking lemon water - sometimes with raw ginger mixed in, drinking tea, chewing on raw mint or eating crackers/pretzels. i have talked to my family doctor about it and he told me it was probably stress - which it is not. i've had blood tests, but nothing ever shows. i'm getting extremely frustrated, as it is starting to interfere with my life. what should i do?