Am I being over protective?

[Charlotte1986]

We're in Germany at the moment due to my husband serving in the forces. Our done was born in June, but due to money difficulties he started nursery (German nursery) in the beginning on March.
Things seemed worrying for me but I tried to ignor it. He used to feed himself with a spoon (if I put the food on first) before he went, and he would walk whilst holding my hands, but he can no longer use a spoon anymore and he hasn't progressed with his walking, he can't even stand on his own. We went on holiday in May, he was saying words like mama, papa, yup, what, and gangan, but he longer says these words.
He's in nursery full time, I've put this down to the language barrier.
Sinceast Saturday my husband has been on exercise, but my usually very happy and smoky son has changes dramatically.
He's become very very clingy, scared of other children to the point where he is crying and holding his hands up, he's scared of adults who come into the house that he knows, he won't let me out of his sight and all he wants is for me to hold him...accept when it's just me and him in our house. I'm really worried he's being abused at nursery.
I spoke to them today and they said it's normal for a child to become anxious and that he's perfectly fine.
I know I feel guilty that I'm working full time, but I need reassurance from other mums, do you think this sounds like something bad is happening to him, or is he just missing his dad?

[GirlsWhoWearGlasses]

Trust your instincts. Take him out.

[Friedbrain]

Take him out