MMR working or not?

I’m ~3.8k MMR and after losing like 6 games or 7 in 2v2 I keep getting opponents of approximately 4.3k MMR. In 1v1 the difference isn’t as big but to me it feels like I am playing vs players with more practise and better skills. Recently I lost like 10 games in a row and still I don’t feel like I’m playing vs people of my skill level. Is it only me or MMR is kind of bugged?