Am I being stupid and crazy?

So I’ve had anxiety for the last 8 years since my mum getting unwell and passing away and every other eventful traumatic experiences after that. Recently I’ve had this feeling and I’m struggling to explain it or understand it. It started off with loneliness with just me and my son, I’m a very extroverted person in a family of introverts, I moved 3 hours from my home town due to personal reasons but the loneliness hit me 6 months post partum. So the best I can word it is, when ur watching a show and you want to scream at the tv telling them the obvious answer or just want to skip to the end to just know what happens, not sure if anyone understands what I mean, the anxiety you get when ur watching a show or movie? I feel like that in real life experiences and I don’t know how to word it but my hearts so unsettled all the time and I feel anxious over life like my insides are screaming at people, like I’m in a rush. I really don’t think I’m making sense but I’m hoping someone understands what I mean. Like the other day I went to the shops with my family and I felt like my insides wanted to scream or something even if there was no reason to I just felt instantly anxious about something without knowing what it was I was feeling anxious about. And I get flustered and or I feel like a heavy feeling on my chest and stomach. I tried to explain to my sister and she just laughed at me so I feel like I’m being stupid for feeling that way.