She would have told them in advance is she knew about the asthma.
Nobunaga
Would be slightly afraid for her but would sit by her as she tried to get her breathing back under control.
Hideyoshi
He would be fit to be tied however he knew he needed to remain calm so you could as well. He would sit there with you breathing in and out as you fought to control your breathing. He would hold you until he felt you were okay.
Ieyasu
He prepared for this. He has a tonic ready for this so as he places it down so the smell can help you breathe easier he will sit there in front of you to helpcalm you. He doesn’t move fast or try to excite you in anyway.
Masamune
He doesn’t get it but knows it is a thing. Whatever he can do he will. He will sit there for hours calmly if you need him too. The whole time telling you he loves you and it will be okay.
Mitsunari
Though he doesn’t panic it bothers him to see you struggle. He will sit there and hold you hand as he tries to remember which scroll has some answers he read. He will hum gently to refocus your mind and breathing becomes easier.
Mitsuhide
He will not move from your side untill he thinks you are better. Remembering what your triggers are and who did this. He has consulted with other healers as well and sits there rocking with you back and forth as he traces semi circles into your hand.
Kenshin
At first it scares him. Though he knew it could happen. He orders the castle to a hault so you can focus. He will keep you in your chambers until he deems you fit.
Shingen
Whispers words of love as you gasp to give you a sense of peace. He has also consulted with other healers and will try anything to help you.
Yukimura
This one is not good with fear but he tries. He will calmly sit down and rub your back. He will help you calm and regain your breath.
Sasuke
Wants you to go back to the future to get an inhaler. He will try anything until he can get one for you.
***My mother has severe asthma and died from complications due to emphysema so I do know how to talk someone out of an attack. This hit home for me****