My light switch just shocked me, and it was making a clicking noise?

My light switch in my bathroom has two outlets on the same plate. I went to plug in an air filter cause my cat took a huge stink, and when I turned on the filter, I noticed a clicking noise coming from the outlet. The bathroom light and fan was on, so I turned it off so I could hear better and I got a shock. What... show more My light switch in my bathroom has two outlets on the same plate. I went to plug in an air filter cause my cat took a huge stink, and when I turned on the filter, I noticed a clicking noise coming from the outlet. The bathroom light and fan was on, so I turned it off so I could hear better and I got a shock. What is this clicking noise? Is it dangerous?
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