21 weeks symtoms normal?

Lynn

I’m having my third and last baby and this feels very different so I don’t know if it is normal. I’m almost 22 weeks. The weather IS warm but I constantly feel pretty hot, sometimes i also feel faint and very tired. Like today i had to sit on a bar seat to make lunch as I’d hardly the energy to stand. So generally faint, light headed and hot. Not ALL the time but a fair bit of the time. Blood pressure was normal last visit over a week ago (also felt similar then). Is this normal? At this stage? I’m not getting the second trimester energy boost. Also I’m not even working as much as I completely cut back.