An I being sensitive to these remarks?

[SoupSlayer]

My dsis seems to say nasty comments to me alot of the times I see/ speak to her. They're just small little things that she'd just slip in to the conversation.

She has always been like this towards me since I was a child but only recently whilst working on myself/ therapy have I realised that it's not on. I have started to mention that I find it offensive/ hurtful but she either says well it's true or stop being so sensitive and implies the issue is with me.
Its happening so often now they I dread mentioning it the next time she says something and im doubting myself and thinking if I am being too sensitive.

I didn't realise you were even here last time you came ( to family gathering). It wouldn't make s difference if you didn't come.

You've still got a stomach (a year after having a baby)

You can't get a good job. You're too quiet.

You're a crap mum. Im glad you're not my mum.

Its a shame. Your kids are nobody's favourite.

You've really let yourself go. My friends have kids and they still make an effort.

You can't do X,y,z . You're not confident.

Wow that's heartless. You're not being sensitive at all. Those comments would really hurt.

I'd be tempted to reply as good as I got:

"Well I can lose weight you'll always be a bitch"

"I'm happy with my job thanks"

"I'm glad you're not my daughter, I'd be ashamed if mine had your attitude"

"Well my kids are my favourite"

It's probably not the best way to handle it though, and while I'd probably think those things I'm not brave enough to say it.

You're a cow, covers it all

Next time it happens I would say 'you must be really unhappy to be so spiteful' and walk away. She's jealous and/or one of those people who uses putting others' down to boost her own ego, you should pity her.