hi I've checked the subjects in your program and as for your 1st year subjects, sure akong maki-credit yung Math11 & 14 (equivalent lang kasi un ng Math17) For your English subjects, if you've taken CommI/II OR KomunikasyonI/II, for sure credited din yun. Sa Chem naman I think equivalent lang ng Chem16 ang Chem14 at ang Chem17=Chem18. Sa Chem lab subjects, you can just take chem 14.1 & 18.1 sa UPM. As for the NSTP you'll be also required to take NSTP classes sa PH, I've learned this from my classmates na shiftees.
For your 2nd year subjects naman, mukhang maki-credit din ang Chem40 & Chem 160 but you still need to take Chem30.1 kasi mukhang wala din kayong lab for Org Chem. I'm not sure about your physics and zoology subjects though. If you intend to shift to PH, I advise you to take many GE subjects dyan sa LB, para konti na lang kunin mo sa UPM. Sa PH kasi, 15 units each ang required for AH Cluster(Comm1, 2 & 3, HumI/II etc), SSP Cluster ( Histo 1,2,5, Soc Sci, etc) & MST cluster (Nat Sci1, 2, etc *should be taken din dito ang Math1 & STS*)
Medyo late na nga kung sa 3rd yr ka magsi-shift kasi magiging 2nd year standing ka pa din pero kung gusto mo talagang mag-PH, go lang

konting tips lang, on your 1st year sa UPM, sabayan mo yung subjects na kinukuha ng 2nd yr BSPH students for ex: Chem 27/27.1, Zoo10 & Physics21 on 1stSEM. For your chem lab subjects pwede mong i-take ang chem 14.1 on 1st sem and chem 18.1 & chem 30.1 on 2nd sem. Actually, pwede mo din silang i-take ng summer kaso medyo limited ang slots pag summer.