Pica may be related to an iron and zinc deficiency. You are experiencing all the complications which can be experienced person who is performing pica for such a long period of time.
You Need a good anti parasitic medication to clear out your gut well as there are chances you may have developed lead toxicity due to paint over the pots u r eating.
Feel free to consult with your detailed history so that I can help you out good counselling and medical therapy
Next Steps
For further clarification, complete evaluation, correct diagnosis and treatment and prescription feel free to consult me on this PRACTO APP. Stay safe and take care of yourself