Please help. What's going on with my dog?

[Lonipl]

My dog woke up suddenly last night and was panicked. She could not stop moving. She moved her head from side to side, jumped on and off the bed. was panting, licking, she just could not stop. It was like she was scared or anxious. she could not calm down or stop. She would come to us but could not stop moving. This lasted for 4 to 5 hours. She slowly calmed down and fell asleep. She seems fine today, just tired and probably sore muscles. This has happened 2 or 3 times over a 3 year period.

[Scorpina111]

I was wondering if you have found out what is wrong with your dog yet? the same thing has been happening with my 10-year-old female Chihuahua mix since she was about a year old. The episodes originally would last up to an hour and happened once or twice every few months. The frequency increased to about once a month for a couple of years. Followed by an increase in both frequency and durations.  However, as she has gotten older the frequency seems to have declined but when they do come they are lasting longer and are now as long as 6-8 hours. this leaves her completely exhausted when they do end and she will sleep for a full day sometimes two before she recovers! To watch her behavior she reminds me of someone high on meth and paranoid! I worry mostly because her heart feels like it is going to jump out of her chest while this is happening,  I think her equilibrium is being affected because if I put her up on the furniture next to me she won't stay she wants back on the floor., She also whines quietly nudging at my hand wanting to be touched but not picked up or held. Other symptoms she has includes no interest in anything she normally enjoys IE. going outside, getting treats. and during the episodes, she won't eat or drink anything!  With a list of symptoms like this, it is pretty hard to use one of those symptom checker programs online so I have to rely on sites like this with real people responding to find much-needed help for my little girl!
ANY HELP WOULD BE HIGHLY APPRECIATED!
I AM DISABLED ON A FIXED INCOME AND ALL I HAVE IN THE WORLD IS THE LOVE AND COMPANIONSHIP OF THIS LITTLE DOG!
I MUST FIND OUT WHAT IS CAUSING THIS HORRIBLE PROBLEM FOR HER!
All responses will be read and taken seriously! Thanks to anyone that can help or offer any advice that will lead me to a resolution!

[specialmom]

I always think a dog is trying to tell us something when they act like that.  Always look at their tongue if you can.  When they have trouble breathing, they act like that.  My sister's dog wok her up the exact same way and turned out to have a small tear in his lung.  Is this better or still going on?  Normally though, if they act like that and then are fine, it may just be a burst of energy.  Anyway, let me know how doggie is doing!