Is it normal to feel out of touch with my emotions and thoughts?

Lately, my head is in a weird place and it is difficult for me to focus on things. I've lost interest in my usual day to day activities and i feel out of touch with my emotions and thoughts although I'm usually a very empathetic, sensitive person; (e.g. When I think of something sad I cant feel anything, except dizzy and confused). and like Sometimes when i try to think and focus on something (like on something stressful) my head goes foggy and I cant think properly, it feels like a thousand thoughts are going into my head at once and then i suddenly cant remember what I was even thinking about.

Has anyone else experienced anything like this?