My 2 y/o sees bugs that are not their Please help!?

My 2 y/o has been terrified and says she sees bugs.. but there are no bugs there... a few days ago she walked into a swarm of nets every since that happened she has been saying she sees bugs ... she has been screaming saying she sees bugs on the wall, in the bathroom ... she will not go to the bathroom alone anymore she pees in the bed to avoid going to the bathroom( so i take her to the bathroom now!she walks around petrified ..its really hurting me i cant stop crying because i dont like seeing her this way all she wants to do is get in the bed, she doesnt even want to eat.. im pregnant and high risk and im not suppose to be stressed out but i cant help but to be is there something wrong? my daughter will look behind me and say she sees a bug and i tell her there are no bugs there, then i ask her what color she tells me white and she says it keeps running and she doesnt like that kind...i hear her saying dont get my mommy bug or dont get my daddy bug...could my daughter be hallucinating? could it be possible that she was so traumatized by the experience that she actually sees bugs or thinks she sees bugs? someone please help! only serious inquiries please. i will report you to yahoo if you leave me a offensive,rude,disrespectfuk answer -this is my 2 y/o were talking about...also that same day my other daughter had accidentally hit the 2 y/o in the face w/ a stick causing her nose to bleed i was wondering if it could be possile my daughteris just seeing floaters or spots in her eyes.. im just trying to figure this all out.thanks for your serious answers,opinions or advice