Almost 48 hours with no sleep and I'm getting worried?

So in about 8 hours I will have gone about 48 hours with literally no sleep. Not a few hours here and there. NO sleep. I was reading up on sleep deprivation online and from the things I’ve read I’m starting to worry. Now obviously you can’t trust everything on the internet, but there have been reoccurring statements that have me nervous. It seemed that after 72 hours of no sleep people start to hallucinate (I believe it’s because you’re body needs REM and it is doing this while you are awake or something). Is this true?

I will be seeing my psychologist on Tuesday and will definitely talk to him about this. I have always had insomnia and I had my tonsils out and my septum fixed to lessen my sleep apnea, but this is the longest I’ve gone without sleep and I still feel wide awake.

I’ve also tried to limit my electronic stimulation, especially before bed, but nothing is working. Only reason I’m on this is because I need some answers.

Am I going to hallucinate? Or end up in the hospital because my immune system is decreasing? Or even just pass out?