Adivice please

So I've never post before but I'm feeling lost. I'm 7 weeks pregnant, unplanned but very welcome baby. I feel nauseous all the time, I don't have appetite, I dislike food in general, I don't feel like eating and my stomach hurts deeply. I cry everyday because the pain is unbearable but everyone keeps telling me is normal. "First trimester is like that" but everyday is a struggle with food, heartburn and things I've never experienced before. I have support from family and man but I don't have the strength anymore and all I see is people enjoying pregnancy so, I don't know if something's wrong with me.