Check your logs. If your traffic is normal and not coming from bots, then chances are your problem isn't facebook, but your LP, offers or ad content. Things change, and what worked for you yesterday might not work today.
Also, 120 clicks isn't even close to enough data to definitely say something is fishy. You need at least 300-400 clicks for it to be statistically relevant.
Also, 120 clicks isn't even close to enough data to definitely say something is fishy. You need at least 300-400 clicks for it to be statistically relevant.