Hi 
I’m so happy that something I suggested has helped you @Mistress_Of_Herbs! That makes me feel better today! 
@starborn I’m so sorry that you are having such issues & stress isn’t helping 
I can say from my own things that stress does some very not nice things to my system. The rush of cortisol & adrenaline resulting from it shuts down my digestive system, including my appetite 
I try to use herbal teas & such as well. For the last few years, I’ve been on a quest to, at the very least, try alternatives to commercial medicine whenever I can. Herbal teas have been wonderful for me! 
I also have started eating yogurts for the live cultures at least once daily. Normally, it will be a regular yogurt. Sometimes, I will get the ones with the live cultures & the added probiotics to them (think Activia yogurts)
Anxiety & stress have tremendous effects on me, especially this past year. My primary care doctor is an MD & DO (Doctor of Osteopathic Medicine), which has really benefited me. She recommended an all-natural herbal tea 
that is chamomile & lavender with added probiotics to it to help me. So I will drink that late afternoon or after dinner when possible. If you would like me to see what the name is, I’d be happy to look! 
Different things that immediately come to mind that currently help me
Meditation helps me with my anxiety & stress when I can practice it & even more if it is a regular thing. It keeps me grounded & in the present. It helps me clear out my mind & improve my focus on the things I can control, too. When I cannot do a typical meditation 
, I will try different types of them.
If whatever is going on is causing a lot of tension throughout my body or difficult energy to be stored, I use a Progressive Muscle Relaxation meditation that is done while lying down. Other times, I will lie down & get as comfortable as I can, turn out the lights, turn off the TV if it’s on, (a lot of times, having soft things that I can put against my face & hold onto wrapped around my hands/arms will help. Fleece/plush blankets are usually my go-to), something firm but soft to put up against me to kind of lean on or support me (my pibble will lay against my back, I will use a blanket rolled up behind me, the back of the couch, or a weighted blanket over my soft comforter, wear my weighted hoodie that has a soft faux fur lining inside the entire thing), close my eyes, & use breathing techniques while focusing on a mantra or affirmation… sometimes more than one.
I use a few different breathing techniques. Even box breathing or breathe in through my nose for 4, hold for 4, & breathe out through my mouth for 5 or 6, hold for at least 2, & repeat. Sometimes, I must start with one type and then transition to another. It really depends on how much anxiety & stress I am experiencing or other strong emotions.
Warm herbal showers or bath things have helped me; diffuser blends, incense blends, scented candles, water (either water sounds or soundscapes, putting my feet in the water at the beach & closing my eyes, or just letting warm water run down my back from the shower). I have found some great soundscapes & meditations on the Insight Timer app & Spotify!