Some may take this as TMI , but ...

So I'm currently 29 weeks . For about a week now , I've been feeling a little off . Besides  Sleepless nights & really bad back pain from every angle you can possibly think of , here lately the following symptoms have me questioning if these things are "normal" being still early on in pregnancy but I've been having on and off uncomfortable pressure 'down there' from baby and feels like he's just a stretch away from coming out the goods any minute now . Back pain seems to come more than go , random dizzy moments ,  butterfly like feeling in tummy , can't tell if I'm cramping or just baby hitting a nerve but it isn't a pretty feeling that's for sure ! Have bowel movements more than usual , some runny , some solid & tonight I felt like I had to go real bad but nothing comes out , no mucus like discharge and no bleeding tho , it hurts to even walk just to throw that out there too . I have been having Increased Heartburn , light tightening in stomach -nothing outrageous tho , star like sights from vision , migraines are at a max and left leg is starting to sore and tingle in a weird way randomly . Numbness in toes randomly too . I have a dr . Apt tomorrow for a check up but anyone going or went through something similar to me and if so is this just the many pregnancy symptoms and body preparing itself for labor down the road or are these things listed a sign of preterm ? This is my 3rd . Definitely felt / feel different from my other two !