Is changing behaviour concerning?

[xlornac]

I adopted Bertie (4/5) a year ago to keep my lone degus company (Bertie had been alone for 2 out of 3 years of his life) and last month he lost his only house mate

Although he has always been friendly and happy to be handled and stroked, these last few days his behaviour has definitely changed. He is wanting to sit with me almost 24/7 which wasn't the case previously when he has a room to run around in. I have also noticed in the 2 hours I left him alone he nibbled that end off of his tail (previously degloved, but hadn't bothered him in the time i’ve had him). He has fallen asleep on me 3 times today which is unusual as he is normally very lively.
I have taken the advice to try to adopt a new degu (once lockdown is over!) however very few rehoming centres exist in my area.
Apart from the obvious cause of loneliness, is there anything that I should be worried about?

[bouncy]

As mentioned in your other thread, I think he's feeling his loneliness. He's experienced goo company, and now his bestie is no longer around. It is common for lonely goos to lose fur, self-harm, and even just give up

[deguconvert]

Ditto