A co-worker and I quit smoking a month ago. Still having problems with nausea. Need advice and how long last

Off and on for a year to 18 months, then its clear sailing. I quit 2 years ago and am just starting to feel better now. But......I hav'nt spent 10 bucks on a pack of smokes for a lonnnngggg time now. Yay! Stick with it, cuz it gets further apart and cleaner as you go.