Maybe if I got the time I take pic of the area in my WH where experience happened. and post it.
Please take your time. No rush but do take care too! If you want, maybe you organise a ghost photo-shooting then we all may accompany you to shoot provided that your WH is not restricted area...
I think your WH is 'haunted' becoz the area is near the cemeteries, and it is also near the famous WW2 battles when the Jap invaded Spore from Johore...
Your experience reminded me of the similar cases i had experienced i was a clerk doing NS in Seletar Camp... my office was near the Seletar airport.
#1:
Being a clerk in a unit in Seletar Camp, my supervisor was a Major. He's a very nice officer. Prior to retiring from Army, he gave me his radio hi-fi system to listen to music in my office. After he had left, the new supervisor was also a Major but he's not a nice officer... very fussy one, and he always make me stay back till 9pm.
One evening i was alone in my office, rushing to complete the newsletter layout draft. My desktop was facing the door which was opened, the radio hi-fi was on my left side against the wall (the only power source was on the right side of my desktop on the wall). I was not listening to music. I heard some trolley noise from outside my office (like catering food service) and then the fellow bumped it against the wall and all the metal stuffs felled with noisy sounds. I exclaimed "Wah liao... so careless!".
Then suddenly the radio hi-fi system on my left side was turned on and the music can be heard! I was SHOCKED becoz the ONLY power source on my right side on the wall is "switched off"... it was not logical for the hi-fi system to get its power even thought the switch on the system itself was ON.. When i go over to check the hi-fi system, it went dead. WEIRD!!! I switched off and on the system itself, it was not responding. Then i went to the power source to switch it on then the hi-fi work. I knew something was in my room, i swithced it off, off my desktop computer, off all lights in my room, locked the door and walked to my officer's room on the second floor to request for permission to go home now!
Knn... that Major had left without informing me whether i can go home too since he was the one who made stay back! So i ask the Lieutenant who was in the same office as him for permission to go home... Whao man... he looked pale and he said let go off together. He offered to drive me off and drop me at Yishun MRT station. While in his car, the Lieutenant told me "someone" was breathing on his neck in the office after the air-con was switched off..
Later i found out from him that the building where our unit was being housed was a hospital for the British soldiers...