Thanks for sharing something this personal! We are used to dealing with such issues on our own, but it certainly helps when you have other people for support. What I've found is that physical issues and mental challenges go hand in hand. For example, liver meridian is associated with feelings of melancholy and depression when the organ is not working properly. It also means we can heal physical symptoms by mastering how we deal with emotions and negative thoughts (and vice versa). I would suggest you check out the book Letting go by David Hawkins which goes deep into that. The ho'oponopono technique is also a tool that helped me let go of negative thoughts/emotions.
Physical activity is a great way to help in overcoming the problem - spending as much time as possible in the sunlight, sungazing, walks in the nature, bodyweight exercises, parasympathetic breathing exercises, clean, easy to digest diet are some of the tools you can try.
Hope you get back your motivation for the next creative endeavours!