Am I sane?

Question: I don’t feel like meeting anyone without a reason, whether it is in office or at my relatives’ place. If I feel that there is no need to stay at a particular place then I go back home and get myself busy on Facebook and YouTube. Sir, am I alright? If I am wrong then what should I do? I always complete my work on time and everybody praises my work in office too. But I still feel that I am not working hard enough and can do much better.