Is This What Old Feels Like?

For $hit sakes… My triceps hurt.  Triceps.  I haven’t worked out my triceps.  Why are they hurting?  That’s just not how this is supposed to work.  If you work out legs, two days later they are supposed to hurt.  That’s the system.  That’s the plan.  That’s how it works.  You don’t work out legs and then your arms hurt.  How...