I don't think they are related, unless the lifters are so out of adjustment they are no longer opening the valves enough.
Regardless, what I need you to do is check for spark and fuel. To me it sounds like the fuel pump is going bad, but I can't be sure until it happens again. If you don't have the tools to check pump pressure, many parts stores will rent them.
Let me know what happens or if this helps you.
Joe
Monday, September 21st, 2020 AT 1:00 PM