How does an adult get tested for a stutter? Idk if thats what I am doing.

How does an adult get tested for a stutter? Idk if thats what I am doing. So I started smoking cannabis about 3 years ago, but I am also on COPIOUS amounts of meds for many diseases and disorders, autoimmune or otherwise. I've noticed in the last year that my brain has been foggier, my memory isnt what it used to be, bad short term recollection, and I am having some speech problems. When I try to talk, its like my tongue forgot the words and i just freeze. My mind and body and mouth freezes, open or not, while the cogs turn in my brain slowly trying to relocate the file of where my train of thought was headed. Its embarassing honestly. I stammer and stumble with my words. Sometimes I say the WRONG words like mixing up wise and witty, correlation and corrosion, or emancipate and euthanize. I see the first parts of words and feel them on my tongue, but its like before my brain has a chance to finish the thought, my mouth tries to finish it instead and makes an error. Was talking to my wife about Pal World and tried to say something about how one of them looks like a piplup, but the way it came out was "Y-yeah The P-Palworld in Piplup with the- the- the- uhm- the- uhm- RIFLES" each - is a freeze. I didnt used to speak this way and I honestly dont know what to make of it. Not looking for medical advice, just friendly discussion of experiences and suggestions.