I ve been to er for a swollen lymphnode behind ear they have erosive antibiotic I had to stop on day 4 of I took blood work second time to er no more infection. I do however he be stomach issues since first antibiotic dose and history of stomach ulcers. 3rd er visit they put me back on pantroprazole and sucralfate. My question is with this going on is confusion and brainfog a concern to go back I have pains here and there also n don t really wanna eat.