Hey hun my surgeon told me id never be able to work on my chest muscles again because it will move the implant, i had unders too. But im 6 month po and doing everthin in the gym fine, not too strenuous but what id normally do, so id just give it a few month until ur comfortable and then build ur way up 🙂 look at jodie marsh haha! Although i think she might of had overs :/ lol xxx