“Poisoning ”

I ha e been feeling sick and not at myself, itcing all over, runny nose, headache, excessive weight loss, loss of appetite, hot flashes, insomnia, nauseous and anxious. My mind has also been extremely foggy and off and on fevers with chills. I am starting to feel better now that my younger sister has came to stay for the holidays. My sister and I were cleaning the kitchen when I glanced behind us to see my older sister walk up to a glass that I was drinking out of and spray something in it. I asked her what she was doing and that's when I seen it was flea spray for cats along with another bottle of cat wormer. She told me that there was only soap and water in the bottles but she has been known to have mental health issues. How can I tell if this is what has been going on with me lately and what would the side effects be?