Post Pregnancy Belly

What did you do to loosen you post pregnancy belly or bilbil? My son is exactly 1 year old right now and im still look like 5 mos pregnant. Sabi ng byenan ko dahil raw yun sa cold water. Mahilig ksi ako sa malalamig na inumin. How can i rid of it? Kahit hindi flat na flat basta ma lessen lang. Nakaka loosen kasi ng self esteem 😔