Confused Bipolar 2

Somethings weird has been going on I have Bipolar 2 and im medicated but over the last few weeks something has gone wrong I have always been a little paraniod but the usual stuff home alone and what not but wow its getting crazy im losing sleep I keep thinking there is someone in the house walking around I can hear foot steps, seeing weird flashes out of the corner of my eye, to worried to go outside cause what if someone dodgy is out there, the blinds completely closed because someone may be able to peak though can't even leave the cats because what if the house catches fire... Is this nornal... I dont know what to do