Hi,welcome to HCM.
The prescence of a small benign ovarian cyst
shouldnt alarm you. Just like the name implies it is benign.
Most benign ovarian cyst are usually asymptopmatic and are usually diagnosed incidentally on ultrasound
scan maybe for something else. You may have occasional menstrual problems like dysmenorhea and menorhagia and maybe increase in size. Otherwise there are no special precautions to be taken. If its not disturbing u then you just let it be. In addition your weight gain is not as a result of the cyst. thanks alot