I was wrongfully terminated from my job. Can I sue?

Unless something else like age, race, disability, sex, national origin, retaliation or another protected class motivated the termination, I doubt...

To answer your questions: 1) 1 year from the date of termination; 2) if this is under the FLSA, 2 years, but the sooner the better for...

How can my employer withhold consent for me wanting to interview with another company? Any legal ground for this?

It is hard to say without seeing the contract between the two companies. However, Tennessee does recognize a claim for intentional interference...

Can employer terminate me for attendance issues, when they used to be flexible about my schedule due to a known medical issue.

You can be terminated for any reason in Tennessee, but it sure sounds like there is a discriminatory or retaliatory motivation here, which would...