Confused

So when I think about doing sexual things with most guys, it’s not very appealing. Like even the smallest things. Someone told me I might be asexual/demisexual but I don’t think I am asexual because I do experience sexual attraction. I thought I might be demisexual but I’m pretty sure I’m not that either cause I have sexual attraction towards guys that I don’t even know. But the actual thought of giving handjobs, blowjobs, and having sex just kinda makes me feel uncomfortable and kinda sick. I was sexually abused when I was young, so could that be a reason I’m feeling this way?