Hello. I ve been taking Oxy Elite Pro for about 2.5 weeks. I started having chest pains recently. Also, I ve noticed that my cycle still hasn t come. This is the 3rd time I ve taken Oxy Elite Pro as directed (July-Sept. 2012, Oct.-Nov.2011) and now. The 2nd time I took the pills , my cycle was 45+ days late. So this seems to be a recurring symptom with these pills. However, the chest pains are altogether new. And NO I m not pregnant- no possible chance.