Are you constipated or have diarrhea? Have you had changes in your weight? Do you have a normal body temperature? Do you have any other unusual symptoms?
Knowing more about your symptoms might help us improve the advice we give you. I can't say if a Bowel Cleanse is what you need to do or not. Having the colon moving is always a good thing.
I hope you are not thinking of treating yourself with herbals because this would be a very bad thing if you do end up having worms.
You might do some reading on coffee enemas. These are a 'tried and true' treatment which may help and is unlikely to do harm.