I have been on Levoxyl for 10 years and have never felt "good" ye...

I have been on Levoxyl for 10 years and have never felt "good" yet. My dtr thought maybe I needed an increase, so I am on 125mcg three days a week, 112mcg the other four days. Upon taking the increased meds, I was experiencing headaches every morning, and also severe exhaustion every afternoon. I also have muscle pain and cramps, and memory loss, thinning hair. I also have developed a stomach issue- maybe acid reflux, probably because I feel hungry all the time. I would really like to explore the natural thyroid but my dtr is not familiar with it but I think would be willing to try it. Can anyone advise me on the process of switching over? Has anyone weaned themselves off the levoxyl alltogether? I have a friend who was on it for 10 years and her tyroid no longer has a problem. She is totally off all meds.