Problem with tinted windows

I had my windows tinted professionaly about 2 weeks ago with no problem or smell to the car. Last week as the weather warmed up a bit my car now has a very strong chemical smell, so much so I get a headache every time I use the car. I assume this is caused by the adhesive that was used to apply the tint. Yet why is the smell getting worse instead of dissipating? Is this normal. I hate to have to remove the tints, yet will if this continues.

Any advice would be appreciated.

Thanks.