This is catch a lingering cold leave over question symptom？这算不算感冒的遗留问题？do you mean persistent cold (遗留) or lingering cold?

I have(1) had a cold for two weeks, although it is much better now, but sometimes my nose is still very itchy, and I will have to sneeze,. 
Blowing my nose is painful and that nose pressed I feel some pain. My roommate said I might have a fever be get inflamed, is this is catch a cold leave over question just a lingering cold symptom？

这算不算感冒的遗留问题？

我感冒已经两个星期了，虽然现在好多了，但是鼻子有时还是很痒，会打喷嚏，而且鼻子按压的时候有些痛，我的室友说我可能是上火了，这算不算感冒的遗留问题？ 遗留 shenme yisi?

(1) still have, so 'have had'

(2) wenti is not question in this case, question or problem or issue or symptom ...

(2) after punctuation always a space

This is catch a cold leave over question？这算不算感冒的遗留问题？

I had a cold for two weeks,although is much better now,but sometimes my nose still very itchy,I will have sneeze,
and that nose pressed I feel some pain.My roommate said I might be get inflamed,this is catch a cold leave over question？

这算不算感冒的遗留问题？

我感冒已经两个星期了，虽然现在好多了，但是鼻子有时还是很痒，会打喷嚏，而且鼻子按压的时候有些痛，我的室友说我可能是上火了，这算不算感冒的遗留问题？

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 Hello Ellen:

 It seems many people this winter, have a cold what lasts for 3 or 4 weeks.

I did, and it was the worst cold I have had in my entire life.

I never get sick this long.

 Still, I have recovered from my cold, and I am sure you will get better.---Warm Regards, Bruce