Age 36 female forgeting things, spelling words, names, people and objects, moments of confustion, comes and goes ms test normal, getting worse?

Cognitive issues: Your description focuses on worsening intellectual function, which can be due to many causes at age 36. Consider medication rxtns, vitamin deficiencies, (thiamine or b-12), low thyroid, occult infections (hiv, syphilis), contact with toxins (even carbon monoxide exposure in home or car). Perhaps there are psychological issues, or unusual complications of migraine or epilepsy. Doubt ms.