Hey Pierre, As i stumbled upon this i have to give my opinion as i have felt like that before. For the record i have plenty experience and run my own coaching business however everyone differs in certain areas and i can see this in different athletes. Should you go see the right doctor you should ask for them to do blood work and especially test your CK levels that will definitely show a form of over training. Some doctors do not understand the stress we put our bodies through. Also have you stopped any vitamins you were using? Reason for this is the effect it has on recovery and when you are increasing your load. For example potassium, if you are lacking or have stopped it your muscles would pain severely, cramp and feel if they are being ripped a part. As far as TSS goes if your HR is inaccurate or FTP setting is set incorrect your values could also be way out, not saying it is the case however 800 TSS is quite a big week. Keen to assist and chat if needed. Ultimately you need to get it checked out if you have not recovered in a few days and go back and check on any changes you have made.
