26 weeks with twins

I am 26 weeks with twins and feeling weird. I didn't sleep at all last night and it's like I feel off. Like my body is weak and feels different. I felt like this the day I went into labor with my son but I haven't really had any other signs. Very minor cramping and I haven't lost my mucus plug yet. Should I be worried? Or is this just typical twin stuff? I have learned its way different being pregnant with twins lol. Thanks