dear thats the standard drug regime that you got in hospital.
Yes the typhiod can have raised WBC count and yes it can cause ulcers and even full perforation when complicated.never the less,since you have been shifted to oral from IV drugs,means that you are improving.Foregt about HB,it will be ok in few days,and WBC will improve as well...Take things easy,be regular in medicines,and take soft diet.avioid chillie foods,and cold drinks like pesi etc.Take milk,and fluids in from of fresh juices.Nothing to worry.Do go for follow up once you get better.
All the best.
BTW BD means Twice a day, TDS means Thrice a day and Od is for once a day.Have nice time recovering,Tc