Not feeling well

Ashley
I plan on calling my OB in the morning but wanted to ask you ladies opinions. I'm 26w pregnant and for the last couple days, maybe even a week I have been feeling so weak and faint. I haven't been sleeping hardly at all but even when I do sleep I feel so weak I can hardly do anything. I have occasionally been having pain in my stomach, up high. Also when I stand up my belly tightens up so hard it hurts!!! I am a FTM so idk if this is just normal but I am feeling very unwell and am getting worried. Any input would be great. Thanks everyone.