3 yrs ago we had spray foam  put in attic to help cut elec cost. It was installed  incorrectly ,therefore giving  me MCS,EI. Noting,no saving  on electric. 
A few weeks ago we had a demo of a MLI product  and solar attic fans. Looked very promising.  We purchased for attic. Monday we had the 2 solar attic fans installed  and since them we have had extreme sticky,humid feeling in our down stairs.  Have we just  really screwed up Big-time?? Need help desperately, asap I have been “triggered” ever since. Company  said yes,they have put these in other spray foam homes. I’m beginning to  wonder HELP