I am 22 years old, female. For the past 2 weeks, I have been feeling sick, tired, dizzy, had what the doctors called pre-faints and been getting sever migraines on one side with weakness on one side of my body too. I have recently been diagnosed with celiacs and have been eating a gluten free diet since. I had a blood test last week to find out my vitamin b12 and iron levels are fine now. I have also started to now get a pain in my stomach and there seems to be blood in my stool. I also have a little lump to the right of my anus.. any clue of what this could be or how to help me feel better please!?