Am I going mad?

I see signs and symbols when I am talking to specific people. They come in the shape of roads like the ones on maps with a few dots. the following letters i've seen are s,t,a,y,h,n,f. Also, I've seen the devil hand 5 times during the night, Jesus came to me in a dream ( he didn't say anything I just saw clips of his life one of which he was helping a girl/boy not sure which) and Jesus on a cross and his mother Mary. Do you have any idea what this means. And yes before you ask I have got my eyes checked. Also, when I see these transparent "lines" on people, I ask them if something major or minor has affected their life and they usually say yes. If nothing has happened then I tell them to be careful. And then something bad happens to them. Also I'm afraid that my teacher who is pregnant might miscarry or her baby might be strangled by the umbilical cord because I saw one straight line and a squiggly line going around it. (2 weeks ago was the 1st time in 4 years the lines have appeared).