Feeling Awful 😞 7 Weeks and 3 Days

Hi. I’m currently 7 weeks and 3 days pregnant. Some days are better than others -but all days have been a true struggle. To sum it up — my head feels heavy and hurts, I feel weak when I stand up, and I don’t know how to put into words but I feel like the sensation of liquid in my upper abdomen that just won’t go away and causes discomfort. I work in a school, and I haven’t shared the news with anyone yet — I push so hard to get through the day. Before all of this- I was very active and exercised and cleaned non stop. When I tell you that I feel so weak, and I can barely stand it’s with no exaggeration. I google my pregnancy symptoms and I see nothing of the sort online from any articles I read. I’m really hoping someone on here can ease my nerves and tell me they feel the same. Im really struggling. I literally lay around and struggle to stand with my head feeling so heavy. Please any words of advice. Thank you so much in advance.