Thanks for choosing health care magic for posting your query.
I have gone through your question in detail and I can understand what you are going through.
One thing is certain that you are not tolerating this substance which has been used for insulation.that is the reason why you are having headache and nausea
Try to stay away from the irritant. And if its not possible then try changing the job.
Hope I am able to answer your concerns.
If you have any further query, I would be glad to help you.
In future if you wish to contact me directly, you can use the below mentioned link:
Wish you good health,
Dr. Srikanth Reddy M.D.