The leaves of my fiddle leaf have been very stiff, folding inward, and have their edges curling. I live in Las Vegas where it is extremely dry. The dog is not in direct light at all but get some sunlight. I water it once every 10 or so days. It’s under an area where a vent delivers cold air. I know my fig has many unfavorable factors but can someone tell me what this is a symptom of? Thank you much.