can we eat curd after eating fish - #23463

I am really confused about something and hope someone can help me. So, I went to this fancy restaurant with my friends last week, and we had this amazing fish dish - I mean, it was so good! Then, later I was thinking, can we eat curd after eating fish? Someone told me that mixing fish and curd is a big no-no in Ayurveda, but I didn't really understand why. I’ve always had curd as a side dish, and I really love it, so hearing that made me worry. After eating that fish, I had such an upset stomach. Was it the fish, or could it be because of the curd I had later? My mom used to say don't mix these things, but she never really explained it well. I mean, there are so many people that eat sushi and stuff, so is this really a big deal? Can we eat curd after eating fish or is there really a natural reason behind not doing it? I need help because I don’t wanna feel sick again!