wind effect, low power, weak legs, tired body?

[kdx200]

Hi John,
I need some help or advice from people like you, please.
data for you to check if all parameters are ok: 175cmts height, P3 bike 10kg, me 70kg, aero position in the fast zone, hood in the street section (whole round circuit about 4,9kmts). maybe its 70% fast and 30% street. TT velocomp combo mount.
wind: yes (dont know direction, but from little to more wind)

I read and re read and (try) analize the bike ride.
Today was impossible to maintain 200+ watts. My FTP is about 260-270 and i can maitain 200 for 90mins.
It was windy (dont know in numbers) and i realized in the fast zone as the speed was in the 40kmh+ range (usually 36-38kmh). The power in this zone was about 190-210w and think thats ok. I think here the wind was helping me for the speed and not for the power. Tell me if iam ok in this.

Second section (its a fast street, but street, so i must go on hoods here).
If the wind was helping me in the fast zone, here the wind "must" be opposite and a headwind. I DONT KNOW this and dont know how to check it, but this section is the opposite way to the fast zone.
Here i was slow and do an effort to maintain speed but never power reach 200w (even 180-190w).
I cant understand this section, i cant understand the feeling in my legs/heart and so "low" power.

I did a wind speed effort in isacc and ALWAYS (the entire lap/s) the effort speed is less than wind. SO i understood that i has ALWAYS (first AND second zone) a taildwind helping me?
Im getting mad about this (my big "problem" is undestanding this second section . also dont know if aim correct in the first one). Also iam assuming that my setup is correct as some weeks ago you checked it)

thank you very much!
ale

[kdx200]

please,
any help?

thanks!

[Velocomp]

Your wind readings are incorrect, causing low watts.

Please post an image of your PP mounted on your bike. Is it possible your wind sensor is located near cables or some other obstruction?

[kdx200]

strange... i did not touch the PP since the first time you told "its ok".

get a look.

thanks!!!