Dont be too surprised if your spider dies in the next little while; they are very sensitive to stress and being in the open, when they have been born and raised in a cage, is very stressful experience for them.
uh I like to disagree with you here:
First I have spiders for like 9 years, this particular one for the past 5 years, I raised her from a spiderling to the size she is.
Spiders don't just die, and they are not sensitive to stress, and lol deffiantly not beeing in the open

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been born and raised in a cage, is very stressful experience for them
Sorry to say but you seriously have no idea what you are talking about
yes they don't like to be touched and it is stress for them, but they don't just die, thats the whole secret why spiders are still around, they are one of the toughest animals around, did you know you can take a T put her in a Tank put her under your bed and leave her there for 1/2 year (if she has enough water) she will be fine.
Anyways:
For some Nina may seem big, but watch this beauty, it's a Teraposa Blondi also know as Goliath or simply Blondi, these are the biggest spiders around, they are relativly harmless only bite if they absolutly have to or if you piss them off, they have a tendecy to overeat and are than of course in danger (when falling) to seriously hurt themself, they have also nasty litte hairs on their back and if you hold them you will have an itch for a couple of days... they can also hiss

what is strange the first time you hear it.
I held one of these babys on my hand and she decided for what ever reason to run up my shoulder and sat on my back, that was the first time I was close loosing my nerves, she was so heavy you can acctually feel her through your T-Shirt.