For the past month or so i have been experiencing weird sensations, aches pains and numbness all on my right side

The right side of my face feels numb. I can feel it but just not properly. My eye has been sore and aching and i swear the pupil is a bit smaller than my left eye although my vision is fine. I get ear and jaw ache in the right side of my face too. I have no loss of movement or drooping in it.

My arm keeps hurting right down to my wrist and my fingers sometimes hurt and feel stiff to move although they aren't. Sometimes i get a little numb patch just above my wrist

My leg keeps hurting too right from my hip all the way down and i sometimes get a numb patch below my knee on my shin.

I saw my GP who sent me to a neurologist who i saw last week. He did the general tests, looking in my eyes, reflexes, tested strength etc etc all looked good to him and he didn't know what was causing it but does not think it is sinister but has scheduled me for an MRI to make sure and also for my piece of mind but it could be 2 months before i get it because of the waiting list and im 'non urgent'.

Just earlier i got like an awful type of sharp pain and felt like something was crawling on the right side of my head which lasted about 30 seconds.

I had these symptoms last year too in october, they lasted about 4/6 weeks then just went away, i got no real diagnosis.
This time the symptoms have been here since about a week into the new year

I am 22 female and otherwise healthy and have no family history of anything major. I am mainly scared of having a brain tumour or MS. I am getting really upset and worried about this