I Have Been Taking Flash Fighter From Vitamin World For

I have been taking Flash Fighter from Vitamin World for about a month to help with hot flashes I have been having. I have been in Menapause for about 5 years now. Well it seems to have helped with my hot flashes but I have had some other symptoms that have started occurring that I never had before. I'm not sure if it is related to taking this or if it could be something else but I have started spotting & have a bloated feeling & even a few cramps similar to menstral cramps. I went to my doctor a few weeks ago because I thought I had a bladder infection. They tested my urine but it came back negative. My doctor gave me an antibiotic anyway which I took for 7 days. I felt better for awhile but now that feeling is back along with the spotting & cramps. I called to schedule an appointment with my gynecologist but can't get in till February. Any ideas on what this could be?