Insecure about this

Hi! So I had a baby 5 months ago. I have lost weight and i am completely healed at this point. We have had sex multiple times since I’ve had the baby, but deep down I’m still really insecure about if i feel the same as i did down there. Like obviously I know the vagina is a muscle and it goes back to its size, but does it really? Like completely all the way? Idk im generally an insecure person anyways so this is just added to the list of things i guess. So not only am I insecure about this, i of course have the stretch marks and loose skin too, so when it takes my husband really really long to finish... I attribute these things as the reason why... he of course doesn’t say anything to me about it, hes super sweet. I just feel like hes just not sexually fulfilled anymore..