[Rainforest]

Hi!
Recently, I've started to wonder about my parents, namely my mom, and how they react to my boundaries.
My mom is dead set on physical touch being one of the most important love languages, and I can understand that, but the thing is I don't like it. Once we were out doing some shopping, and when I came out of the changing room to show her one shirt, she tried to hug me but I shook my head and sort of dodged it. She said that if I don't hug her she won't get me the shirt... (I managed to persuade her in the end... but I got a lecture of how I'm disrespecting her if I don't hug her). Whenever we watch a show and a child dodges their parent's hugs, she comments on that as well ("See how they're disrespectful?")
I tried to talk to her one night, explaining that I wouldn't want to hug or touch her but am open to other means of showing affection, she casually made a joke about "How else do you want to show affection? You want us to be conjoint or something?" She really doesn't understand it.
Additionally, she comments on my weight a lot. I've told her that I don't like it when she talks about it, but her excuse is that she wants me to be healthy. Yes, I get it, but our conversation goes like this every time:
Her– Are you sure you want to eat that/You need to do more sports.
Me– I really don't like it when you comment on my weight
Her– Just saying, I want you to be healthy
Me– Okay, I don't want you to comment about my body
Her– You need to be healthy

(The thing is, I am healthy. I'm not overweight or anything like that. I just find it really hard to not hate my body when that happens. Also, on a side note, I hope I'm not posting too much on TH or anything like that... anyway, I'm looking for a way to explain the concept of boundaries to her. thanks for any help )