Hello Dr. I have recently been diagnosed with cholecystitis was prescribed ranitidine, ondansteron (to prevent vomiting), meclizine, tramadol and baclofen, then went back to Dr. who then said I have a kidney infection, prescribed me cephalexin, 500mg 2Xday for 7 days which I just finished this AM. Now, I have pain in my pelvic region, bladder hurts to urinate....Symptoms I've been experiencing include tiredness, dizziness, nauseated and have vomited a few times,bloated feeling, swelling in facial area, right flank into back pain (intermittent, sometimes extremely painful, can't lay down on right side), lower back pain at times. IN a previous scan for a different health matter, It was revealed to me through my medical chart that I have a cyst on a kidney. Please give me your opinion on this dilemma. Thanks.