I went through a multi year period of this some years ago. I am also renovating my house room by room and am almost finished. I am worried about what I will do when I'm done. I'm 53 and slowing down a bit but sometimes I wonder if I'm stretching this Reno out so I don't have to face myself.
OK, I'm going to assume that you work your ass off for one or more of the following reasons:
It is your main (only?) source of accomplishment
It is your source of ego fulfillment (not in a bad way)
It is your way of boosting (maintaining?) your self esteem
It keeps you so active you don't have time for other harmful addictions or behaviors
It keeps you from having to feel loneliness
It keeps you from having to engage in interpersonal relationships
It proves to your parents and family that you are successful
Those all make sense to me. Maybe it's not the same for you though. But the bottom line is , besides money and accolades, what will you have to show for it at the end? Another question I like to ask is what would you do if you broke both legs and couldn't work? Would you fall apart? Because sometimes life gives us those situations so we can grow. If you tackle it now you won't need to fall apart.
In your business it should be doable to have a one hour appointment during the day. You leave your guys on the job and slip away, returning 90 ish minutes later.
Do you have a Lead guy you trust? I own a small service business and that is key, IMO.
Your body cannot handle the stress and it is giving you early warning signs. If you don't fix this you will land in the hospital, then you will do nothing but worry about your business falling apart. Wouldn't it be better to be proactive about this now? Kind of like when a piece of equipment starts to breakdown and you fix it before it becomes completely inoperable? You, Myname, are that piece of valuable equipment. Do the maintenance on you as you do on your equipment!