Yes I've felt like that for years and could never understand why until I found out it can be another symptom of fibro. So faint out of breath nauseous feeling like I'm going to pass out after talking

I get exhausted in every way..just have to rest.( Do you have a sister named Bekah..).when you feel like you are die ing..that sounds like panic attack..( with panic attack you feel like you are dieing)) you can feel paralyzed....unable to speak..walk..depleted .. heart attack..like ..trembling shaking tremoring lack of ability to speak etc... its different for some ..many run to the emergency room( rightly so..as it is very scary) ..and it can be a panic attack..and cortisol is ramped up when you are stressed and that totally depletes a person when you are in a constant state of fight or flight...that is what the abundance of cortisol does..it gets you ready to fight or flight when stressed after that happens too much you are left depleted...

Happens to me too I feel very tired worn out and shaky with weakness after a conversation and to talk with anyone

Yes when I get tired, I get tired fast and I cannot talk to anyone. I am just way too tired to listen or talk. my son and I were distant for many years. He lives with me now. And I am so happy to hear his voice. He will sit at the bottom of bed and talk for hours. I am so grateful to have him back in my life. So I listen to him. I do get tired fast talking to anyone on the phone.

I have trouble remembering how to work my phone and tablet at times. I have to stop thinking a minute than I remember. I have been known to ask the same question 3 or 4 times in 5 minutes.