My Baby Girl Has Just Completed Her 5th Month. There

My baby girl has just completed her 5th month. There is a swelling in the backside of upper & lower gums.Sweling is only in the backside of gums, not in the front. Is it ok that the teeths starts growing from backside. She rub heer ear & cheeks so much. She is also doing watery potty with solid substances, 6-7 tmes a day. Pls advice