And people think I am loud?

So I have been living in my apartment since the beginning of summer. We live downstairs in a two bedroom and am now on my second roommate after the first moved back home after summer was over. Since that time I have watched a parade of people go in and out of the apartment above me all day and into late hours of the night. I was on shop hours during summer and was rarely home during the day so I had no  idea what they did during that time before. Now that we have had a few later calls this rotation in paints I see that they are just as loud and crazy during the day as at night. Now when I say loud and crazy I mean the bass is so loud I cant hear the music just feel the thumping through the ceiling. Like some cholo's car parked next to me at a stop light even if both our windows are up. (Or when my best friend is driving =P) Other times I am sure they have DDR or Wii Sports in every room because they stomp so much it shake the walls as well as stuff on our shelves. When we first moved in the one guy said if it was ever too loud to let us know because we used to hear screaming marital problems. I have only told them to be quiet once and it was because they were so loud and it was already passed midnight during one of our long summer weeks and I couldn't take it. The other day I had such a bad migraine that I came home from work after throwing up and tried to go to bed. I kept getting woken up by noise. I finally got a few hours straight. I then had to call out the next day because I was still super dizzy and sick and my hear hurt so much I wanted to cry. All I wanted was sleep. About every hour or so there would be some loud thud or bang from upstairs. I hate the noise, but what do I do, go upstairs and say "you walk too loud?" I don't want to be "that" lady either. I mean I understand that living downstairs you are getting more noise. It is the tradeoff for not having to live upstairs and carry everything up and down and up and down etc. It is just irritating that after a certain hour they seem to have no consideration for the people around them, especially when there are signs around our apartments specifically banning loud music. Normally I am not that upset, but when sometimes their base drowns out our tv or music that is pretty messed up. I don't think that it is unreasonable to want them to shut up at 130 in the morning during the week! I feel like an old lady when I say this, but we all know how little sleep theater people get sometimes especially in conservatory with class and homework and rehearsal and friends and laundry, and dishes and family and reading and laundry and grocery shopping and washing your car and laundry and cleaning the bathroom and laundry. I feel sometimes like my hours in he day are becoming more and more precious so when I have allotted some of them for a specific activity, especially sleep, I am more than irritated when that is stolen from me. My roommate says he kinda wants to hang out one day with them and see why on earth they make so much noise. I want to string them up in front of our apartments by their DDR pad or stab their Wii-mote through their head.