Bug bites?

I recently noticed what looked like bug bites on my skin. The bites are similar to pics of bug bites....However, Of all the people in and out....and who live in my home, I am the ONLY one being bit. I have checked for bed bugs several times. I have found No bugs nor any evidence of bed bugs. I do have pets but have checked and no fleas. I have cleaned the bedding all clothes floors walls....everything!It started with 5 bites on my thigh.....several days later a couple on my buttocks...then 2 days ago woke up with a couple and then all of a sudden yesterday morning 8 appeared on my abdomen....Then throughout the day More....I ended up with 25 new "bites" even after showering and putting clothes on directly from the dryer. I have not changed my diet....not around anything new( so it is not an allergic rash to anything new....so frustrated ....so itchy! HELP!!!!! what could it be?

If you've been outside in wooded areas or sitting on the ground it could be chiggers.

http://animal.discovery.com/arachnids/question488.htm