I have a large cyst between my vagina and my but it is right in the middle it hurts to sit down even walk sometimes,and sex is not an option,also i have a yellow coated tongue,I went to emergency,the doc there said it was a viral,not thrush,then my doc said it was not thrush either even my boyfriend has a little on his tongue what could it be?i also have red bumps but she says it is my taste buds,but im always tired and always have an upset stomach what could it be?