Policy or expectancy?

My husband is complaining that he is tired and stressed. Most of it is work related. He thought being a manager of a facility meant a lot of paper work and telling others what to do. But this company threw him a fast ball. I think it is also the fact that he is 50 and expects to take it easy. This is the point where men start getting really lazy mentally and physically. This was justified by the remark my aunt made the other day about men after 50. I am in trouble if this is so. I tried empathizing with him but I'm at a different port with my working out, building strength and stamina for my son, wanting to look and feel my best. I think this is more about self-worth.
When Peter came back into my life I was working for a printing company doing deliveries and quality control. I didn't mind the physical demands of the job or the 100 miles I drove almost daily. Eight to ten hours of lifting and dealing with traffic, did challenge me, test my patience on my bad days. I did this kind of work full term. The pregnancy became a source of worry for me, am I pushing myself too hard. I resented it towards the end. It was wrong in my eyes to have a pregnant woman doing deliveries. I kept thinking why don't they just give me something else to do and have someone else do the lifting. But they just paid for more boxes and made them 20 pounds and lighter. My expecting my concerns to be shared by my employer became a source of daily stress and I started to wonder why I was there. With much complaining and refusing to do certain deliveries finally got some attention. The last few weeks of my time there they had someone fill in where I wouldn't. But that is the only way I could relate to my husband for his stress and lack of energy. When I shared this with him, he got real quiet.