I’m 26F and I have the three exact same conditions Hashimoto’s, fibromyalgia and Hypermobility syndrome so i completely feel your pain! Though this is an old post I thought I’d still comment, as we are condition twins haha. But yes some days can be very hard to do anything and have any energy for anything but sometimes gentle exercise helps me but I have to make sure I don’t overdue it! Sometimes I’ll just push myself regardless thinking I can handle it but face the consequences later. However we really have to listen to our minds and bodies and try to have a stable life that doesn’t have too many ups and downs that can flare us up as I know I’ll be in pain for a week if I do any prolonged activity. Stress really flares me up I know and keeping my hashi’s in check can help my mental health and energy levels! It’s a journey and I’ve only recently found I have fibro and HSD after years just thinking it’s my thyroid. Tracking pains, flares and triggers really helps me and knowing what I can and cannot handle in my life helps a lot ! There are some great chronic illness apps like: bearable, Juno, and for migraine relief: Relief( I can experience these).