Twitter hashtag rules

So to save time with building up my social accounts i have linked my tumblr and instagram to my twitter account. When i post an image to tumblr and instagram it auto posts to twitter. Now tumblr supports upto 50 hashtags and i generally use about 30.

When tumblr auto posts to twitter im worried that i might get suspended from twitter by using slight variations of hastags

Eg: cat wallpaper, cat mobile wallpaper, cat mobile phone wallpaper, funny cat, funny kitty etc.

What do you guys think,

if its under the rules then its a problem but i don't think i have seen this happening