What can I do?

My son is is 2yrs & 3 months.  As some of you know I attempted to potty train him last month.  It went well for a few weeks until he turned on me and started to hold in his bowels.  I believe he developed a fear of pain ever since one day when he skipped a bowel movement.  I've came to a conclusion to go back to pull ups and give it another try in a few months.  Well, he's been in pull ups for over a week now.  Still asks to go pee pee but I just let him go in his pull up since I completely want him to forget about potty for now so that he can go back to his normal self .....AND the bowels he is still holding in.  At this point I dont know what to do anymore.  I try to explain to him that its ok to go and not to be afraid.  Seems like its just not working.  His pedi agreed with my decision to switching back to diapers and left it at that.  So I have a 2 yr old that goes num1 perfectly fine and holds in his bowels.  Its becoming very frustrating because through out the whole day he complains about going num2 and I cannot help him at all.  I rub his tummy and do little workouts with him to relax him a little but he seems very persistant at holding it in.  Any advise for me would be appreciated.  thanks

[RockRose]

I agree that he does sound constipated.  

I would really be  doubtful that a child that young,  who isn't even toilet trained,  could willfully withhold a bowel movement enough to constipate himself,  though.  I would think in fact,  he's constipated,  and that's why going to the bathroom hurt.  So now,  he's constipated AND afraid to have a bowel movement.

You can give him citrucel,  or you can give him bran fiber in his cereal and probably that would help a lot.  I don't think this is strictly behavioral.

[MomOfTwoGrls]

If he is holding it in so much, He may be constipated now.  You can try giving him a couple of glasses of apple juice.  If that doesn't work talk to the doctor about giving him a supository.  My oldest did the same thing, and winded up with a blockage in her intestines from holding it in and becoming consitpated.  Her pediatrician gave me a low dose suppository and worked like a charm to unplug her.  

[Hazel30]

Hi ladies thanks so much for  the reply.  This is what Im currently doing.
I try to give him a tsp of metamucil a day, BUT I cant trick him of the taste even in his apple juice.  So I dont even think that he even gets a full tsp of metamucil.  Apple juice does nothing for him. I will try prune juice.  He's been sick with a virus for 4 days we did nothing but lay on the  couch and he didnt go again for 2 days so I  gave him an infant enema (spl?).  That worked saturday  and yesterday he skipped again and this morning  he went.  He goes once every day and usualy evening when he cant hold it in anymore.  The process before he actualy goes is the crucial part but once he goes he gets so  happy and cheery  and even starts clapping.  He doesnt cry when he actualy goes nor does his stool seem hard on daily basis except the past 2 days.  But this issue we've been having is now for 3 weeks.  So we go through this even when hes not constipated.   He holds it in through out  the day every day even if he's not constipated.  How can I get him to just go.
We can be out at friends house, grandmas house and he is so  winy and fussy because he has to go.  He sits on  my lap and begs to go home.  I keep telling him to relax and just go and that its ok and  he still  holds  it in.  I just dont know and as the RockRose said its a behavioral issue, OK, but how do I change  that or help to reverse his phsycology on this.