Ugh i need help....

Today I woke up feeling great. I'm currently 37w5d and I've been taking primrose oil vitamins orally for 5 days. Twice a day. Today I went to Walmart and got castor oil. I took 1tbs with orange juice and nothing happened so I took 2tbs a couple hours later. And I walked 2-2.5 miles....(says Google..I walked fast pace for 35 minutes) and I came in and relaxed. After a while I was feeling really really sleepy. I mean I'm never like this..I can barely keep my open. And the sides of my tummy starts aching(where kidneys, hips, ovaries are). I also have the same type of feeling around my vagina. My v. Feels weird and its achy. I go take a shower And I've been laying down for an hour and my sides are still aching. I don't know if they are contractions or not. Its an on going ache it doesn't last for a minute and go away. Its a consistent ache and I kinda feel like I might throw up every now and then. I dont need to poop or anything, im just super sleepy and achy....why am I feeling like this?

(For all those people that are going to say castor oil is dangerous and all....I didn't know until after I took it. I just took it because an old lady at Walmart told me I should take it and that's why I took it.)

I am moving out of state 4 days after my due date and would prefer my baby be older than 4 days before going on a long trip. And this moving date is set...there is no way around it. That's why I am trying to naturally induce....