Sometimes there are smells associated with fabric that are straight from the manufacturer. The fabrics have to dry completely before they are rolled. if they are slightly damp they get a musty smell that is very hard to get out. Also they sit in containers on ships, sometimes for a long time, before they get to the warehouses in the states. All that can expose the fabrics to temperatures and conditions that have nothing to do with the retail place you purchase from.
I'm sorry you have such sensitivities. It can make things very difficult. there is always the option of asking someone else to cut yardage for you...if not your husband, then a friend, LQS or Online QS that offers that service. That may be your best option if using a cutter is not comfortable for you.
Good luck!