New hamster no sign??

[xEmilyMax]

Hello sorry to bother you this is my first post. About three weeks ago I believe I picked up my hamster from a petshop and he is young as they stated, I let him settle in for the first week and sat in the room a few times and he was out quite a bit. A few days after that he didn't come out for awnile which worried me so I checked on him for him to screech which I was glad he was okay but did stress him out. After that I gave him more time alone which he did come out in the late hours of the morning a few times however, starting last Friday I believe I scattered food out for him and its been like that since and nothings been touched, I did have a camera in the corner by him not too close and there was no activity and it's been like this since. Should I check on him again as I'm so worried that he's not okay. Kind regards Emily