All the symptoms you describe I get too. Turns out after seeing a neurologist and having an MRI done that these symptoms are a seizures. I had all of these problems, thinking I was having a Trans Ischemic Attack,
(mini stroke) before having two major nocturnal seizures (Tonic/Clonic)

This is what happens to me. You're actually having the seizure when this is happening

Yes I had three of these seizures (called focal or partial seizures) right after my second subdural hematoma surgery this past February. I was completely aware of my surroundings, knew what I wanted to say but couldn't form the words correctly, my entire right side went pins and needles. It lasted about 1-1/2 minutes (maybe a bit longer) and then I was perfectly able to talk properly again. Obviously they were the result of the two surgeries so close together (within 9 days) because I have never had any kind of seizure my whole life and I am 71. But they have completely changed my life! I was put on Keppra, can't drive, experience slurred or hesitant speech frequently and now am having dizzy spells with subsequent headache which only lasts up to 15 seconds. Just had a CT scan three days ago and the brain cavity was clear of fluid, which was a great relief. Having a 72 hour EEG next week to see if these seizures are happening at night without my realizing it.. You are not alone but it is very frustrating!!