I am new as well, as for first sympton I am really not sure which one it was, I work for social workers so I type alot, I found or should I say one of my team members noticed I was typing numbers wrong, missing a number, On the other note I lost speach for a full month and when I went to the hospital they told me it was stresss related.
How I was diagnosed... I left work half way through the day went to the doctor told him I didnt feel right, he told me to get some rest probably stress, I woke up next morning totally paralized on my left side, I had a very rough beginning I had a major attack and then it was diagnosed. Unfortunately for me I had another major attack while in the hospital a month later and had to start rehab all over again, walking , swallowing, using my left hand etc. I was 2 full months in the hospital
The tingling I have had ever since, it is damage to my nerves and its I believe nerve repairing, it hurts some awfull and the tightness is spascisity I believe, what you havent mentioned is the tighness and detached feeling of the area.
I would like to tell you this can be dealt with, talk to your doctor.