Patience...it may take another two weeks to recover after getting stressed as you did to it....shame, shame! LOL! Don't panic yet! They have sometimes amazing resiliency, and can bounce back from near death experiences...it just takes awhile. Use an accurate thermometer near the top of the plants and keep it there always, and one elsewhere in the room/space...two zone digital ones are only 8-10 bucks. They are well worth the money.

Ck the lighting section for charts about how close to put your light