6 month old fit pitcher

I have a 6 month old girl. Within the last week she has been pitching a fit! All of a sudden sudden snaps in her and she start crying....won't stop until I pick her up. Sometimes picking her up isn't good enough. I have to play with her or get her to laugh..and Continue to do that until she falls asleep. The moment she wakes up it starts again. I can't cook or clean or do ANYTHING without her screaming to the top of her lungs. She cried for an hour tonight in her stroller while I cooked dinner. I'm so stressed out!! And don't know what to do. She wasn't like this before. I'm not sure what to do. And the other night I was washing clothes at the laundry mat and she decided to start to do that except I could calm her down. And everybody was staring at me.so rude! Looking at me like I'm doing something wrong. I just don't know what to do!!