Exposed to Freon (cfc) gas. State?

I was in a hotel room 1 day back and freon(cfc)  gas was leaking through the AC and I didn't noticed all night. I was getting some headaches in night also but I ignored it.  After I wake up I found uneasiness and cough. I was in that leakage in a confined space for about 15hrs. I was in a shock as I noticed a leak and left. I was heaving headache, cough, chest pain and fatigue after that. It has been above 30 hrs since K left that place. At this time also I've fatigue, bleching  lot, cough, chest pain, headaches (but all less intense) ,  a lot of anxiety as freon is heavier than air and would It be in my lungs forever. How much time I'll take to get in my normal mental and breathing state? Please help :)