Welcome to JustAnswer Health...and thank you for your question. I am a verified Expert and am delighted to help you today. I am sorry you are not able to see a Doctor...because you are right.. this is what you really need to do. Hormone imbalance can cause the irregular periods, weight gain and more... so this is certainly a possible cause. Do you have any pain or unusual cramping?
I'm glad you don't have pain. I think the pills may help you by regulating your period... this is actually a common treatment for women with irregular menstrual cycles.
yes, that is possible. IF the birth control pills do not resolve these issues you will need to see a Doctor who can order blood tests to either rule out or confirm a thyroid issue. A hypoactive thyroid can cause all of the symptoms you are experiencing.