Why am I so nervous to meet up with someone for the first time?

I constantly meet guys on dating apps and when we are texting i can be myself but for some reason i never feel like meeting up with them. Now that i have met a guy who is super handsome, super sweet and funny, i wanna meet up with him so badly. He does too. He constantly compliments me and tells me how much he likes talking to me. I have never been insecure about my looks because i know i am attractive. However when it comes to my body its a different story.
For some reason i am scared to meet up with him. Its not that i have posted fake pictures of myself but its more that i am and always have been insecure about my body. Some guys love it, others dont. Im just scared he thinks im fat (if im being honest)

What do i do about this?
Why am I so nervous to meet up with someone for the first time?
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