In law struggles- long post!

So we have come on holiday with my partners family and it’s our first holiday abroad with our 9 month old. Safe to say it’s been very difficult and stressful not the mention I suffer with postnatal depression. Well it all came to a head the other night I have really really struggled with this holiday more than I thought but I am also proud of myself literally 3 months ago I didn’t even hardly leave the house because of my postnatal depression and anxiety. So to come on holiday abroad is a huge step, yes I have complained sometimes that I’m not enjoying myself to my partner and I have had my down moments. So the other night my partner went to his family letting off steam how he was finding my complaining difficult and me not 100% enjoying the holiday a downer. Well his family let loose how they really felt saying how I have been very emotional and on edge and talking about how they don’t understand why I am like ‘this’ I should be enjoying myself I am ungreatful and they literally ignored me when we were due to go to a family dinner. So I found out their true feelings about me and how they don’t understand why I am depressed on holiday and I should be over postnatal depression by now am I just due on my period?!!!! Firstly I’m upset for my partner going down to his family and what felt and the time like slagging me off when I wish he would of just told me how he felt and I could of explained my reactions and how I can’t help it sometimes. But also I wish he had my back infront of his family not letting them be mean about me when I have such a difficult time. It caused a huge argument and really hurt my feelings, we are ok now but I really am struggling to be round his family with how small minded they have been about the whole thing and so unsupportive of postnatal depression. Sorry I just needed a rant! And I being to sensitive ??