Bruising And Terrifying Night Noises

I have always believed in ghosts. Always thought that they exist and even believe that I have been visited by a family member who sent me a bad message. I've been dubious of the more evil spirits and never really believed these farfetched stories I sometimes read.

I've been having a bad few months and had to move in with my gran. Now, she is a very spiritual person and has angels (ornamental) situated around the house. Around a month ago I was fast asleep and around 2-3am I was awoken by coughing and spluttering from the bathroom and this terrifying noise. A deep groan which I can only describe as zombie like.

Peculiar, the next morning, after forcing myself to sleep, gran never mentioned anything so I eventually forgot about it. Until last night, around 2-3am, I was woken by gran coughing and spluttering again, only this was followed by a deep, evil sounding laughter, then some inaudible words, the voice was my gran but not if you know what I mean, a deep almost man like, scratchy sounding, very loud and clear even though I didn't understand the words. Now my gran is in her 70s and is quite quiet and quite timid by nature. She again never mentioned anything this morning.

I have discovered bruising on my legs and I have a very sore calf which is sore to walk on. No explanation for these but if they're connected I thought I'd best mention it. This has scared me so much I need to get to the bottom of it, I've been scared all day so came here to see if there are any answers. Also this is my fifth attempt at submitting this, strangely enough my browser keeps closing and resetting this page so I started copying and pasting each paragraph. Probably a coincidence but still, spooky. Thanks guys.