It should feel supportive but not constricting, it should be tight enough to hold your implant tight to your chest but loose enough not to cause discomfort or to dig in. How close they are pulled together isn’t an issue and won’t have any effect on the result, they just need to be pressed firmly to your chest to stop movement. Also, constipation is really common after GA, drink LOTS of water and take laxatives. I hope that helps.