You gave the answer for your question yourself. From the breakdown of your results, TSH it is slightly high( if adequately treated , it will be< 5). This either indicate that your are not taking your thyroid medications as suggested, or taking sub-optimal dose of thyronorm. but as you suggested you have been irregular with your medications, my suggestion to you would be to continue with 50 mcg dose, but ensure you take it on daily basis with out missing ant dose. Then you can check just TSH in next 3 months time. Hope this helps