That's interesting to hear, ours has been like that for the longest time, chalked it up to being a dog.Strange symptoms indeed! The strangest of all was that he suddenly started developing long lasting erections, having never done that in his entire life. Bizarre!
Maybe a reference thread should be started to combine all the symptoms people have experienced due to hypothyroidism. Might help others down the road - seems we've all attributed weirdness to something else when they are most likely a symptom.