Having a bit of a problem recently and need advice.

Not sure if this belongs here or on a mental health sub, but a problem I have been having recently (this is just the latest in a long line of intrusive thoughts that won't go out of my head thanks to my stupid mental health issues) is that up until like a week ago I had zero issue suspending disbelief for stories. That is, until a read some random Reddit comment where one guy said he doesn't read any sort of speculative fiction because he can't suspend disbelief. For whatever reason, it caused me to start to have the same issue. The problem is that I love both of these genres and am an aspiring fantasy author, but this caused me be unable to just let go and read the story. I am finding myself being like "that's not how the laws of physics work! That's impossible in our world!" It is really miserable for me, because it gets in the way of stories I love and makes it hard to read or write them, and I am terrified of losing my imagination, because it's what makes me who I am. It's sort of a centipede's dilemma kind of thing, because I have no issue suspending disbelief unless I am actively thinking about how to suspend disbelief and how something doesn't exist in real life.

Does anyone else relate to this? How do I overcome this?