In over 50 years of sewing I have never had this problem. I have had strong chemical odor a few times but a couple of days in the fresh air and sunshine and it is gone. I did have a fabric that smelled very strongly of machine oil even though there was no sign of it.
Is it just one piece of fabric . If it is all fabrics in your stash try airing it other wise the only solution I can think of is washing but if you have a large stash that could be out of the question. If it is just one fabric contact the store you bought it from and ask if anyone else has had the problem.