UTI😬😒❗️

So I want to go to the doctors to get checked since I’m pretty sure I have a uti. Whenever I pee it stings, but I’m 17 and I want to go alone but I’m not sure if you need a parent to go with you . Last time I went to go check they were kinda rude so I just went home lol I didn’t even get to ask😬 but yea.... what can I say or ? I’ve never gotten checked so I’m kinda shy. Do I need parents to come with me ? What can I expect ?