Yikes Annie now you are scaring me. I have had a severe B12 deficiency for a few years now. I need mega B12 injections and tablets. My thymus is only enlarged - not a thymoma they said.

Not sure about the link with horses. I did work with photo chemicals all my life with poor ventilation. My bosses went to court about it for another co worker. She got a nasty type of asthma and diseased lungs. I think I was drawn to horses cos they did the exercise for me when I got tired. Like another pair of legs I could never run or play sport like the others my age - but I could ride a horse... and put in extra effort and ride fast or jump or just potter along on trail rides. I hope this makes sense. The horse became my 'helper'.