Diagnosing it for a quite few days .. few night of un-peaceful sleep..
removed, reinstall wordpress.. break things, re-fix some feature and plugin..
still the Feed Validator saying that my blog’s feed is broken..

was wondering ..how.. is that possible.. ? while i can still access other feed located at other subdomain (blog) such as :
http://afifah.namran.net/feed/
http://shaf.namran.net/feed/
http://namran.net/biz/rss.xml
http://din.namran.net/blog/?feed=rss2
but also.. other domain hosted at the same IP as mine such as :
http://mohdhanif.com/feed/
http://negaraku.net/rssfeeds.php
.. all above is working fine without problem..(mine is still broken at that time..)
while we are at this..
see also ..
http://thekadkahwin.com/
hehehe..

after few days of trying and bumped..
~ quite desperate .. as my twitterfeed also died when FeedBurner just stuck like that.. hahaha
~ Facebook’s Notes got un-updated..let alone the status there..
~ less thing to look out.. as wondering..was my blog been hacked.. broken.. or what…


Until finally read this piece here[google.com].

FeedBurner will not process an original feed from your blog if it is greater than 512K in size. (This limitation only applies to the actual size of the feed file itself and does not include any images or media files you may have linked to or embedded in your posts.) To get a feed larger than 512K back down to size on Blogger, you need to add a parameter to the address for your original feed’s URL — the one that FeedBurner checks for updates in order to keep your FeedBurner feed current — that tells Blogger to shorten it to a specific number of posts. To add this parameter:
1. Sign in to your FeedBurner account.
2. Click the title of your FeedBurner feed on the My Feeds page.
3. On the feed management page that appears, click the Edit Feed Details… link just below your feed’s title.
4. In the Original Feed Address field, change the address listed there from an example like the following:
Code:
http://myblogname.blogspot.com/atom.xml
OR
http://myblogname.blogspot.com/feeds/posts/default
to the following format:
Code:
http://myblogname.blogspot.com/feeds/posts/default?max-results=3
(Note that max-results sets the number of posts you want to have appear in your FeedBurner feed. Any integer value between 1 and 500 is permitted.)
5. Click Save Feed Details. Your changes are immediately applied and FeedBurner re-burns the newly shortened (or lengthened) feed.
podcasters: Don’t ever want an episode to drop off of your feed? Set this value to 500. (What happens on episode 501? Pandemonium!)
Bloggers: Do you write lengthy posts and come up against FeedBurner’s 512K limit to total feed size? You will want to set max-results to a small number in order to keep the feed file size under control. You may need to experiment with the max-results setting to get the ideal feed size. How to tell the filesize of your feed? Enter its address into www.web-sniffer.net and look at the report it returns; there should be a value in kilobytes for the size of your feed in an “uncompressed” format.

…HAHAHAHA!!

then I suppose just need to reduce the feed just to grab the “summary” instead of “the whole story..”
and limit the count of post to be feed at one time..
but also now tend to try to cut short my writing.. hehehehe..

.. after that.. thing went back to normal again….
few post from blog imported back to FB’s notes at the same time one shot..
( still.. few post missing from here is NOT there ever.. )
like this one

hopefully .. help out someone else who having this kind of problem also..
the good thing is.. now my feed are ..

.. except whenever i use “header” tag in post.. hhehee

p/s : Kinda of got “Gotcha in the face…. !”

“If It’s Not One Thing, It’s Another”