hello, i have a picc line in my left arm , its been there for almost a month now, and today I was having twitching muscles right in that area near the picc line. is this something I should be concerned about? Also, I accidentally injected the wring kind of saline solution to flush the picc line.. I used the type of saline that is external use only, so i was wondering, is that something to be concerrned about too? I only did it once, cause i ran out of the injectable saline flush seringes, but then read the bottle and it said that its not to be injected. thank you for your resonse,.