Hiya guys for about 4 weeks now it feels like my brain or areas surrounding it are bubbling and I get twitches in my temples, Brain fog and my short term memory is now terrible

The docs sent me for an MRI last week but haven't heard nothing back off it yet so I'm guessing nothing serious is up

Could this be anxiety?

It seems to be constant when I'm still but can't feel it when I'm walking around

Kind regards

Jordan