I forgot to post this to my gym log.
Decided to hire a trainer (for 10 sessions, still expensive). I want to add weight lifting to my exercise regime, but at my age I could easily injure myself. That is my reasoning.

The trainer wanted me to come 4x a week, but I opted for 3 which I think I'll narrow to 2. Today is my second session.

This is from Session #1, March 27, 2017:

My morning walk and yoga stretches were already complete.

I worked out in a fasting state.

Warm up-bike
Complete body workout. Simple. 3 sets of ten on the different areas.
Cool down-treadmill

The last station I couldn't complete the final set. My body was shaky. I haven't had that feeling in a long, long time. I almost barfed, as I was lying on my stomach doing hamstring lifts.

I drank lots of water before the workout, some water during and more after. After watering myself at home I had a large mug of salted bone broth, chased with two packages of toasted seaweed (love that stuff).

Think I'm going to be a bit sore tomorrow.
End session report.

I was sore the next day, especially my fingers. The other muscles I worked on are still somewhat sore. I think it's possible muscle recovery takes longer at my age. This is why I'm considering just 2 sessions per week.