So, I haven't had a period in 38 days now,

I'm struggling to sleep but am a night and morning shift worker so my sleeping patterns could be off by that, my head is always hot but body gets cold, my boobs are really sore. A few months back I had 18 days between a period, but I have never ever had over 25 days in my life. I don't want to test because I'm literally way too scared, what are your thoughts?