Greetings @peaches!
It sounds like you had a very powerful experience while meditating! Rest assured that drawing up strong emotions is pretty common in meditative work 
- and is not necessarily a bad thing!
Shadow Work especially can bring up some very overwhelming emotions, but can help to open the door to deep inner healing 
If you were doing any kind of Shadow Work, I would recommend following up with Self Love Work- this Self Love Spell is a personal favorite of mine 
It is also possible that you were overwhelmed by some type of burnout. Meditative work is relaxing, but relaxing can sometimes release a flood of emotions and energy that we are usually holding back. These emotions may be from stress from work or other life areas, or it may be from Spellwork Exhuastion- there are some tips on how to handle it in this post: Feeling Tired After Spellcasting? if you are interested.
I definitely agree with @Pedros10 about recording it in your Book of Shadows/Grimoire so you can look back on it later 
. Sometimes meanings are immediately apparent, but other times it is only time (and perhaps repeated experiences) that can help to build an understanding.
I hope some of these tips can help you! Hope you are doing well and that your future meditations go well. Love and Light! 