Sorry if this is a bit long but trying to explain myself.

I have always believed there is more to life/earth than just US, i have dreamt people are PG before and it has been true, i have seen relatives in dreams and at time IRL that are no longer with us.
I have a strong connection to my brother and my great grandmother than have both passed and am not SCARED of seeing things, this said the last couple of weeks i have had an uneasy feeling:

New Years eve we had family over, my SIL's husband thought he 'saw' something in our outside room where he and the kids were going to be staying, he let the kids sleep in there for a bit but they ended up going home, he refused to stay @ my Mil's birthday which was held here.
I didn't think much of it and wasn't scared if there was/is something here, if anyone would see it surely it would be me right?

So a month or two back DD and i went out for the day, when i got home all the doors in the house were shut, i figured DP's cousin must have come and the kids had shut the doors. Was a little spooky but nothing to worry about.
DP's cousins DP came that arvo and i asked if they had been in the house, he said no.
He borrowed our trailer and said he would be back in about 20min.. no probs i played with DD on the tramp outside, when he got back he asked if i had shut the gate when he left, i said no.. for one it's a 1/2 a km to our fence as we are on 10 acres and the gate has been latched open since we moved in in October last yr... we both thought this was strange as my doors had been shut and now the gate when no cars had been in or out...

This didn't phase me and didn't make a deal out of it as DP thinks i am nuts.. hehe
Then DP went out with friends one night, i left the kitchen light on and watched movies in our room, every now and then i thought it felt like someone had walked past the bedroom door, a slight flicker in the shadow from the kitchen lights, to be honest i figured if there was SOMETHING here it was just checking that DD and i were ok in the house, it hadn't done anything and wasn't coming in to see me.

I have lived by myself since i was 18, i am used to being alone at night so when DP was working late for about a week it didn't worry me at all, UNTIL...

DD was playing at the window at about 6:30 while i cooked tea, she normally talks to the dogs and i figured thats what she was doing having a giggle until i looked out the kitchen window and the dogs were there... i thought i better go see what she's up to.. as i walked in i could have sworn i saw someone move away from the window on the outside... all of a sudden the dogs went NUTS... i checked outside and there as NO-ONE and we can see pretty much the whole property so if there was someone there i would see them.
DD stopped chatting at the window which had me a little spooked, for the rest of the night i had this strange feeling i was being watched from outside, it was by no means the calm 'someone is checking up one me' feeling i had had previously.
That night i took some sraps out for the dogs and could have sworn someone spoke, i checked towards the shed and there were no lights. The dogs were doing laps of the house and sticking very close now to any window or door DD was at.

I have had this feeling a couple of times now, even when DP went out last week, i feel it is outside and is not coming in but it really is starting to give me the creeps.
We NEVER lock the doors in the house but i am thinking of locking them ALL, i don't leave outside lights and i NEVER shut our curtains...

Any ideas on what this might be, i think if it was an actual person they would have had their chance a million times to get into our house with or without us in it.. i am so not sure but that calm feeling is gone... if it is a ghost i want the happy protective one back!

sorry it's so long.