DR's are not always right at all! Many years ago my mother (who could not speak very good english) ended up screaming at the hospital staff that someting was very wrong with her and no one could work it out. They were going to send her to a psyciatric unit. In the end, on advice from her mother, she took (at the time it was red liquid, I was only young but she made us take it too) She downed the red liquid which was a worming agent at the time. She was full of worms from our dog. DR's at the time did not even think of worms.. She had grubs dropping out of her, she was infested. And no DR picked it up.