\\\Does anybody know if exercise can make the thyroid levels worse? I went running on Friday (not far)\\\
One of those controversial topics in Medicine and one can choose one's study to support one's thinking on this.
The predominant opinion seems to be that severe exercise can increase the level of TSH but this will not be affected by the ezxercise that you had on Friday.
\\\Friday, but in the meantime I am wondering if I should continue with the training this week? \\\
I would await the result of the TSH and also ask the opinion of my Dr, as also one has to consider, should your TSH be low, what treatment is envisaged.
Sort your thyroid problem out, before you consider a 5K run.