i was in the hospital for a week total between two different occasions and i had doctors notes for both times. When i called my boss, he told me to

I was fired after my boss advised me under text not to worrry about coming to work but to take care of my health. I did exactly what I was advised to do and provided a note to prove I was having medical issues. Before coming back to work, i called explaining the situation and he said not to worry about losing my job just to take care of myself. I have text messages from my prior boss advising me to miss work twice and I even went sick as well. I had notes for all days missed then when I came back to work, with no warnings or write ups or even any disciplinary conversations at all, i was fired out of nowhere. Is this wrongful termination?