My character wears only clothing, for the moment. He has a base Endurance of 9. When wearing clothing ( ex. Bramin-Skin Outfit +1 End, +1 Agl ), he gets the added effects, to the associated Skills and the extra 3 AP for VATS. But the increased End doesn't grant the extra 20 HPs. I can't find any info on it. Is this an unknown bug? Or, is it intentionally?

Playing on the 360 platform, I was wondering if other platforms have experienced the same thing.

you only gain health at level up and that is from your base endurance.

Not a bug and was there in FO3.

If you look at Buffout it has an independent HP modifier. The +END will raise poison and radiation resistances as expected.

End affected the amount of XPs, at level up, in FO3. That is not he case in FONV. The listed formula is

95 + ( Endurance x 20 ) + ( Level x 5 )

You gain +5 each level, no matter your Endurance. In other formulas, it is listed as ( Base [ whatever ] ) and not just ( Whatever ), when the base, applies to the formula. Using Buffout, not only increases your HPs by 60, but it also increases End by 3. You gain the benefits of added health, up to 10 End. The Bramin-Skin Outfit should net an extra 20 HPs when worn.

EDIT : I just popped Buffout. My base End is 9 it raised it to 10 and my HP jumped up 65 points.

EDIT 2 : It does not increase the health. My base HPs are 305. The Buffout only raised it the given 60. Thus the formula IS from the BASE amount and NOT just the total Endurance level, from added effects.

I'd imagine a bonus HP effect from an item could cause problems from equipping and unequipping.