2 Pair in Micro NL (kind of long with several hands)

[catfish_01]

I've played about 7k hands at $10 NL and while that's not a legitimate sample to account for variance, I have noticed that I lose BIG on two pair hands. I'm wondering in general how much stronger than one pair I should consider two pair... I've gone through poker tracker and picked out some two pair hands to post as representative of certain situations. If anyone cares to comment on whether I overplayed them or was just unlucky that would be great!

In each of these situations I did not know the villian:

http://www.pokerhand.org/?938788
I've seen players act strong with a bad ace or whatnot; so I called the flop to see what he would do on the turn and then decided that I was ahead thus got it in. Upon hindsight, the range of an avg. villian's three-betting hands probably made this unprofitable; but if I was going to call the flop I was going to have to call the turn and the river unless a counterfeiter or four-straight came...

http://www.pokerhand.org/?938960
This is the closest thing to a "don't know what else to do about this one" hand... barely knew this opponent too. So I didn't think a turn bet had any value after he called my flop bet and felt strong on the river.

http://www.pokerhand.org/?938979
Another "well, what else can I do" hand.

http://www.pokerhand.org/?938991

Overall am I overvaluing my two pair hands? Against strong resistance against an UNKNOWN opp should I realize that it isn't as good as I think? I realize that against calling stations and certain LAGs two pair definitely has good value-but what about other trickier situations?