I just wanted to let you know I am feeling exactly the same as you. I have 3 children, 2 primary school ages and a toddler. I’m equally naturally an introvert and need time to recharge. I could have written your post word for word.
I’m close to tears all the time, playing and engaging is becoming a real struggle. It feels like I’m performing, whereas it used to just be natural and it’s exhausting.
I also lost a parent during the lockdown and the grief can be overwhelming. With no outlet, time to think, space in my head to process it all its compounded my feelings.
I have absolutely no doubt in my mind this this, for me, is lockdown fatigue though and not depression. I just feel so trapped, hemmed in, like I’m on Groundhog Day, every possible activity I can think of I have exhausted. The weather is awful and I can’t be bothered dragging my children out in the cold and rain and deal with all the washing, mud and cleaning it entails.
You are not alone in how you feel and if you can take anything from the fact you posted about it - it’s great that you recognise how you feel, that you can put it into words and you are thinking about if you need help.
Try and talk to someone in RL if you can, you might be able to make a plan that will give you the rest you sound like you need.
I plan to get up early tomorrow morning and take a walk before my husband goes to work. I need to do something and this is the only available opportunity I have.
It’s really really tough at the moment
Xx