You can ask your doctor for a referral to a neuropsychologist or speech language pathologist for cognitive testing. If there is a deficit in your attention or memory, you can participate in cognitive therapy provided it is deemed medically warranted. I don't know if you are taking any meds. If so, check with your pharmacist if this could be a side effect. Pharmacists know a lot of things about drugs which doctors do not.

And yes, as others said, an increase in anxiety can certainly (temporarily) affect cognitive function. Your mind can't focus on the worries and the words all at once if you see what I mean. So ameliorating the anxiety would likely help.

Try not to worry too much because you know what that does to focus and memory