1. Use "were" instead of "I'm" because this is a hypothetical or unreal wish. In English, when expressing a wish about a present situation that is not true, we use the subjunctive mood, and the correct form of the verb "to be" is "were" for all subjects, including "I."
2. You need to add the article "a" before "stomachache" because it is a singular countable noun. Just like "a headache," "a stomachache" also needs an article to be grammatically correct. Each symptom must be treated as a separate noun with its own article.

1. Use "some" instead of "a" because "medicine" is an uncountable noun. Uncountable nouns cannot be preceded by the article "a" since they don't have a plural or singular form in the usual sense. "Some" is used when referring to an indefinite amount of an uncountable noun.
2. Add the possessive adjective "my" before "headache" to clearly indicate that you are referring to your own condition. In English, we typically use possessive pronouns with body-related issues (e.g., my headache, my stomachache).
3. Reorder the phrase to "a little better", which is the standard word order in English when expressing slight improvement. The original structure "better a little" is not natural or grammatically correct.
4. Use a gerund phrase "Having a headache" as the subject of the sentence. Starting with just "Headache is rare" is incorrect because "headache" in this context is not a general concept but an experience. Gerunds are used to turn actions or states (like "have a headache") into subjects of sentences.

1. The correct expression is "on my period", not "I'm period." "Period" is a noun, so it needs the preposition "on" and a possessive pronoun like "my" to indicate it is your current condition. This is the natural and grammatically correct way to describe menstruation in English.
2. Use the base verb "feel" instead of "feels" because the subject "you" is second person singular. Verbs must match their subject in number and person, and "feel" is the correct form for "you."
3. Add the preposition "as" to complete the expression "think about [something] as [something else]." In this case, you're asking someone to consider what qualifies as important care. Without "as," the sentence is incomplete and unclear.

1. Use the article "a" before "long time" because it's a countable time expression. Also, remove the repeated word "ling"—it appears to be a typo. The correct phrase is "take a long time."
2. Use the possessive pronoun "my" to specify whose favorite things are being eaten. In English, you generally use possessive pronouns before personal preferences or belongings.
3. Use the preposition "at" when referring to being enrolled in or attending a university. "Of university" is not correct here; it does not show your relationship to the institution clearly or idiomatically.
4. Use the adverb "easily" to modify the adjective "tired." In English, adverbs (not adjectives) are used to describe the manner or degree of actions or states. "Easy to tired" is incorrect because "easy" is an adjective, and "tired" is the past participle form of a verb.
5. The phrase "take to sleep a lot" is incorrect. "Take to" means to begin liking something, which doesn't fit here. The correct and natural expression is "sleep a lot," which directly states the action.

1. Here is another way you can say this: ''communicate''
2. Add the preposition "with" after "speak" because the verb "speak" requires "with" when describing mutual communication between people. "Speak others" is incorrect; "speak with others" is the correct and natural expression.
3. This is most likely what you wanted to say here. I rephrased your sentence a little bit so that it could make more sense and include more natural phrasing.