The month of October full of stress.

This whole month has been filled with stressful events. It started off when my 5year old cat Bella died unexpectedly. We aren't even sure how she died. I let her out in the morning to go outside as I normally do and I would bring her in before leaving for work. This time she didn't come in. It was my husband who actually found her lying their in the front yard motionless. It was so heartbreaking that I had leave work early because I couldn't hold in my grief. I had her cremated so that way she could always be with us no matter where we moved to. I started feeling anxious at night and not wanting to be alone. Then this past weekend some of my family was affected by the tornadoes here in Texas and then my 15 year old niece confided in me that she too is dealing with anxiety. My concern for her is if she's getting help for it? I just feel like some words of encouragement or even an outsiders suggestions on how to deal with this would be helpful. Also if anyone has had any luck with herbal or organic remedies for anxiety.