Talk to General Physician on Stomach Bloating

My stomach is bloating for unknown reason. For last two weeks I was having nausea, tiredness, breast tenderness, frequent urination, So I thought it’s pregnancy. But I got periods on expected dates. The flow was very light this time, which never happened before, I always bleed heavy. I went to gynae and she prescribed me risek 20, maxfol and lezra and asked me to come after a month. I don’t understand the reason of giving lezra, as it’s been just 6 months to my marriage and I naturally conceived after a month of my marriage but it ended up as missed miscarriage 3 months ago. My all reports are clear. What should I do now? Should I take these medicines? Or should wait to conceive naturally again? And what should I do for my stomach bloating?