Portia is rich and intelligent
Answer:
He feels worthless and dehumanized. He feels like his life is not worth living.
Explanation:
He no longer has any way to move about as he did before and he is in pain. He does die.
You could write this from two perspectives:
He is insane and his mind drove him to believe he is a bug.
He honestly had a physical change and therefore he dies since he feels he cannot do anything anymore and he cannot work to take care of his family.
Answer:

Did you know lying is unhealthy for you? That's right! Lying is an excuse for some of the worst things people try to hide although they are obvious. Everytime you lie, you've already lied to yourself about it even being right to tell that lie. What can you do to avoid telling lies? If it's a lie, keep it to yourself. If it's a good lie, say it. It's safe to tell lies for good reason, but always try to be truthful, and make the wise choice.
The tense being used is present tense.