Yip. It started around 12 weeks and it's getting a little better, but not much. He is so happy around me, OH, my mum and my dad. If anyone else looks at him or holds him, he becomes distressed. It's caused a lot of problems over the last few months, especially as one of the people he becomes distressed around is my MIL and she's been quite upset about it.
It's a lot of pressure on my mum as well, because she's the only one who can babysit for us or have LO overnight. Luckily, he has a ball there and my mum wants to spend all her time with him, but I still feel bad, kind of like I'm taking advantage of her. He would be miserable with anyone else though.
I'm assuming he will eventually grow out of it, but it doesn't look like happening anytime soon.