Differences between feel and verb to be

[Nano Lakes]

Hello

I cannot understand the difference between feel and to be.
For example:

I feel exhausted , I am exhausted.
I feel homesick, I am homesick.
I feel tired, I am tired.

Could I use verb to be instead of verb perseptions?

I know that feel has to do with skin , but how I could understand the verb to be in these sentences

[Anglika]

In this context, it means that I am experiencing this feeling. "I feel sick" - I have the sensation that I may be sick".

[Raymott]

Hello

I cannot understand the difference between feel and to be.
For example:

I feel exhausted , I am exhausted.
I feel homesick, I am homesick.
I feel tired, I am tired.

Could I use verb to be instead of verb perseptions?

I know that feel has to do with skin , but how I could understand the verb to be in these sentences

"Feel" generally does not mean touching - tocar. Think more sentir