So I've recently met someone online and we texted on a daily basis and stuff was looking good I liked them and they liked me. We even talked about meeting after the pandemic. This four days ago. Almost two days ago we were in the middle of a conversation and they suddenly stop to respond. 
My problem now is that I don't know if I should text them and ask if they're okay because I'm afraid I will just bother them or come across as weird. My anxiety always tells me everyone hates me anyway so this is really confusing for me.
Would really appreciate some advice