Little bit scared

[HiperX]

I let our dog to the house when my parents are not home . We get upstairs,. then the dog runs in my room , then i come after the dog, then he stared on my chair and after a while started barking to the chair/computer... He confirmed from another angles after ,with bark..

What is your thoughts about this ? How can i check if it is a Ghost / Spirit or something else ..?
I dont see and hear anything , im not as open as the dog . im just curious .. Can they harm me on energy level ? My throat also hurt after the incident/sitting there after.

 

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