Something is slightly wrong with me...

I've been on home for several days and Lately I've been noticing that I have the urge smile and laugh for no reason and I think something is wrong with me. I feel like I'm not the only one with this problem. (Even though I'm depressed) I swear I'm not faking it for attention. I searched about this online and clicked on this and read the comments

https://www.quora.com/I-feel-like-there-may-be-something-wrong-with-me-Why-do-I-feel-the-urge-to-laugh-even-if-theres-no-reason-to-laugh-at-all

And I read Brady's comment and it actually cleared my mind. I'm feeling stressful these days, and my problem is not bad but not good either. I'll update you all when I notice something again.