I'm Wondering What Could Possibly Be Wrong With Me? I

I'm wondering what could possibly be wrong with me? I can't eat a full meal without being nauseous or throwing up, I have zero energy (I'm anaemic also, so know how to usually manage this), my body hurts/aches along with odd abdominal pain in my lower left back, stomach, cervical area and even right lung (dull pain), and intense dizziness/lack of vision. I can't drive, or do anything with my partner as I get dizzy just walking out the front door. I can't work, I can't go to buy groceries and know nobody in my town to help me as I'm new here. I don't want to go to the hospital as I fear sitting in the emergency waiting room will trigger severe dizziness and make me unwell. I also have immense anxiety because I'm terrified of passing out in public or having an episode. It's been like this for weeks now but has gotten significantly worse over the last week. Blood tests roughly one month ago didn't indicate anything that worried my gp. I'm really stressing out and need help please point me in the right direction! I'm a 22 year old female, not overweight, not unhealthy diet wise, I smoke but not heavily. I haven't changed anything dramatic in my lifestyle fo cause this.