Truck has no crank and no start it just quite

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. Sorry to hear about your health issues. Definitely a challenge. Unfortunately your vehicle issues are things that must be addressed in order for you to be able to drive your vehicle. And rely on it for all of the things you are using it for! Yes, It sounds like the ignition key cylinder is a concern. I do not know if it is a concern related to the no start, but it certainly could be based on the symptom you've shared. I can say that it is always best to make the repairs you know are needed before guessing at other things, or approaching other concerns. Hands on testing is needed. Reach out to a shop near you for guidance. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.