Does this sound like a vitamin b-12 deficiency?

Hi there, I am hoping to get in touch with anyone who has or has had a vitamin b-12 deficiency. To start with, I have not drank milk or eaten eggs for many years. The only meat I would eat was chicken or beef. Until about a week ago, I had been a vegetarian for a year and a half. This all started in July. I do have a pale tongue but it isn't smooth, it seems like my taste buds are swollen or infected. My tongue burns and I think it may be enlarged as well but I'm not sure about that. I am losing more hair than normal, not a terrible amount but 2 or 3 times more than usual. I have had very disturbed sleep the past few months. Some nights waking up every hour on the hour and some nights unable to get back to sleep. I am usually an insanely heavy sleeper (seriously) but I am finding that I am hearing what people say in person and on the television in my sleep and placing the conversations in my dreams (which tells me I am not sleeping deeply at all). This happens every night or morning without fail. This problem with my hands has recently ceased but for months I would get tingling sensations in my fingers. I would shake my hands, trying to alleviate the numbness but that never helped. It started very mildly. It didn't happen very often at first but the symptoms escalated until it was occurring several times throughout every day. Also, I have lost over 10 pounds in just a couple weeks. I noticed the weight loss in August. I have since gained 4 pounds back. I have been taking a vitamin b-12 supplement because of the non-meat diet, but am now reading these supplements can actually rob the body of b-12. If anyone has had a vitamin b-12 deficiency, please do help if you can. Thank you so much.

[Amanda0922]

Also I want to clarify, I do not know exactly how long it took to lose the weight. I don't weigh myself often. I find being a vegetarian the concern is keeping weight on, not losing it. August is simply when I noticed I had lost 8 pounds and within 2 weeks, I had lost 4 more pounds. I have a lack of appetite. Also it might be helpful to inform you I am a 24 yr old female. And I do admit my collarbones have become MUCH more pronounced since I quit eating meat. Thank you again.