I'm wicked exhausted but scared to sleep

Friday I woke up around 10am went about my day. Took a nap from 730pm to approximately 9pm then was up from then until 2pm Saturday. Took a little nap but it's now 1040pm here and I'm scared to actually sleep longterm. Reason being last nap i took I felt like I sucked something up which made me wake up coughing. Weirdest part was I was having a dream of being an astronaut running out of oxygen in the rocket I was on. Plus while driving earlier I had a ton of built up gas come out of nowhere which caused me to have a panic attack because I thought I was dying. I'm still convinced I'm dying in a way which is also why I'm scared to sleep.