last night at dinner, my husband broke into a cold sweat and did not respond when I called out his name. I got up and sat next to him and called his name and asked if he was ok, as I was ready to call 911 he said faintly, "I'm ok....I took a hit of pot a few minutes ago and just feel really really stoned." He is 65, in incredible shape, of normal weight and eats very healthy. Is there any concern I should be aware of? He smokes pot maybe once or twice a month to relax.