Feeling so crappy!

Okay ladies let me know I'm not alone. These forums honestly get me through any and every worry I have. I'm 9 weeks 2 days pregnant and up to 9 weeks all was going fault smoothly just some nausea but nothing I couldn't handle. Well the past three days have been brutal. My lower back is so achy I've been trying to have a heating blanket on it to ease some of the discomfort but it is so persistent. My stomach is also so uncomfortable! I barely have been going number two so I'm sure this has something to do with it but even after I eat my stomach starts to ache. Like telling me no don't do it. So I've had to really watch my portion sizes to prevent discomfort. This discomfort ask comes with cramping I'm not bleeding and I do feel baby is okay and healthy I just think it must be the digestion and my uterus growing. Every morning I've been waking up so congested. It's like I almost feel like I have the flu or something. One more thing, last night I slept on top of a heating blanket for my back and I didn't feel over heated but I woke up covered in sweat. Which made me worry a little because I know you shouldn't over heat your body. Like I said I didn't feel over heated but all these symptoms and putting me through the ringer I feel like I can barely function. Anyone else feeling any of this.