For the past few months my wife has been taking a fat burner to aid in her workouts at the gym and her job which is at the gym. She thought she may have been going through menopause, she is 41, as she had night sweats, developed a rash she thinks may be hives, she is increasingly irritable and aggresive with me and the boys at home, and her period has been coming anywhere from 18-35 days apart. She went and had blood work done to get checked out and all the tests came back normal. So with the blood work being normal, is it possible that the use of the fat burner are a possible cause of what she is going through?