Is it normal for me to feel uncomfortable?

Hi. I've been with a someone for almost one year now. Things are pretty good with us, however Im just confused or concerned at some things he has said to me. Basically I would like a little bit of advice on if it's normal for me to feel weirded out or if I'm just overthinking silly things (I do have anxiety). So, the first time we talked about our past partner's and things, he tells me the first time he ever had sex was when he was 18 and it was with a 40+ year old woman. He then told me that he "had her daughter too" (who was close to his age) but then changed it to "I only kissed her daughter". This makes me a little uncomfortable as I've always been with people close to my age and I've always had an emotional connection with them. Along the lines of sexual partners, he then also tells me he's had sex with a lot of people (like 60) but then one day says "I'm going to tell you the truth, it's actually only five". The amount of people doesn't really bother me. If it's a lot of people, that's okay. However, the fact he lied...or is lying to now pretend it isn't that many makes me uncomfortable. I'm always truthful about things to him. Lastly is that he told me when he was around 27, he was having drinks with friends around their house. He met a girl there,started talking with her and I believe got her number. He said they "only kissed" on this day but he found out she was 16. In this case, I'm going on an assumption that he stopped anything as soon as he knew her age, as he said when he found out he said "sorry" and did nothing with her after this. I understand that these things are in his past. I made this forum just to see other people's perspectives here. Thanks in advance.

If you feel his lying is a red flag, then you need to make a decision about your relationship with him & weigh it all up. Some people will tell you he's a compulsive liar & that he cant be trusted & you never will be able to trust him, while others will say he's just a skite & most guys will fib about their sex life while single. The fact that you feel concerned about it all, tells us which way you're likely to go if he doesn't start respecting you..because, really he's not respecting you or himself if he continually lies about his past, no matter what the subject.