I have Alzheimer’s and hypothyroidism. Recent test levels at 18.0. Will this permanently damage more memory?

https://www.agingcare.com/questions/can-i-be-a-caregiver-on-an-agreement-for-mother-if-i-am-trying-for-ssd-475682.htm

This was ur first question from last year. At that time you were going for SSD and caring for your mother and being paid for it. So who are you talking about you or Mom? Its so hard to answer a question in 3rd party.

Last year it was you that had the thyroid problems. Now u have been diagnosed with ALZ? This is what I found.

"According to studies, the prevalence of cognitive dysfunction is high among patients with hypothyroidism. Increased age, increased disease duration, and high levels of TSH are statistically related to cognitive deficits"

"Hyperthyroidism is an overactive thyroid (when it produces too much thyroid hormone). Hypothyroidism is an underactive thyroid (when it does not produce enough)."

With Hypo you gain weight with Hyper u lose weight. Both can be helped with Medication to help bring numbers back to normal.

If you are not seeing a specialist for this you need to. Both the specialist and Neurologist can answer ur questions. You also need to make a decision about your life going forward. Who is going to care for you. Who will be ur DPOA and Medical proxy.

Grandma and Geaton are correct. This is a discussion for you and your doctor.

"Hypothyroidism is common in adults and is frequently associated with cognitive issues, such as increased forgetfulness, mental slowing and “brain fog”. However, unlike in congential hypothyroidism, there is limited data on whether hypothyroidism in adults results in structural brain defects."

Source: https://www.thyroid.org/patient-thyroid-information/ct-for-patients/vol-7-issue-8/vol-7-issue-8-p-7/#:~:text=Hypothyroidism%20is%20common%20in%20adults,results%20in%20structural%20brain%20defects

I agree that this is really a question for the specialists who are treating you.

This is a question you should ask your endocrinologist and if you have a neurologist that you are seeing ask that person as well. Most medical offices have you set up a portal and you can ask questions that way. I would send both this question.
Most of us repsonding are not medical staff and we have no idea of your history so I would not trust "us" with a medical diagnosis any more than I would trust "google" for the answer.