If u want to check whether it is really or not overtraining, more popular are muscles, leg pains
when walking up the stairs (legs like wool, you can not produce the maximum strength),
morning heart rate (some more beats if it is 1 or 2 stage of overtraining or less
when advanced), need for salt / carbs,
foggy brain, headaches after more effort / tiring day, disturbed relations with family / friends, sleepiness (everyday) after meals, insomnia,
mornings fatigue, or simply — take something heavier and exercise it, and if you'll feel shooting in the joints, weakness of the ligaments and muscles, you can be sure that you are overtrained.
I firmly believe that colors help me brave the winter
mornings when I need to get out, fight the
foggy sunrise and walk to work.
I especially enjoyed it
when it was very
foggy, as it often is in Abu Dhabi in the
morning, so then makes for a nice walk during the day.