You almost certainly have bedbugs. There is one way to tell for certain. When you kill a bedbug, it produces a distinctive, acrid odor for several seconds. (Ticks do not do this, and are much more difficult to kill.) If you do have bedbugs, get out of the apartment as soon as you can - they are almost impossible to get rid of without tenting the building and fumigating it. Make sure you thoroughly wash all clothing, sheets, etc. with borax detergent and hot water when you move, and do not take any soft/cloth covered furniture with you - particularly your bed. Hope this was helpful.