welcome to the forum, I'm also new here.
I can see the current covid situation has been stressing for you and your family. the uncertainty, the constantly changing response.... As someone who lives alone and easily get stress i feel you, when the stress get overwhelming, I also don't have the motivation to be active.... 🙁
low energy and motivation and lack of interest in things you used to enjoy could be the symptoms of depression, have you talked with your GP?
Hope you spend some time with us here, share with us, this is a supportive community where the ppl listen 🙂 You can go to the BB social zone if you wanna talk.