For a few weeks, I've been pretty dehydrated. Suffering from anxiety, I failed to drink water, had a mild sore throat building, coughing at night, acid reflux because of weight gain. Just started taking Buspar today and my stomach is a little weak. I ate something with vinegar in it and it made me sick, I vomited pretty forcefully and at the end, spat a little bit of red blood. Now I'm completely freaking out...what could this mean?