Separation anxiety

Since I was little when I my mom would go run errands and take a while to be home I’d get kind of panicky and think worst case scenario but I thought this way normal. I got to college and formed crippling anxiety about being away from her, and thoughts of her passing while I’m thousands of miles away. She’s a single mom of five and she’s always put us above her in every way. I just want her to be happy and healthy. I want her to find love and start to truly love herself cuz she doesn’t. I find myself getting severe waves of anxiety, I often have panick attacks just worrying about her😭😭 at least 3 times a week I’ll wake her up at 3 in the morning sobbing because I couldn’t stop worrying. I don’t know what to do. I do my best to breath through it and I try to meditate on it, but it’s really affected me this past year.